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122100212012 = 22197331370313
BaseRepresentation
bin111000110110110111…
…1010110000100101100
3102200011101002102202112
41301231233112010230
54000030123241022
6132031515143152
711551520451332
oct1615557260454
9380141072675
10122100212012
1147867428529
121b7b7144ab8
13b68b34a87c
145ca4249b52
1532995608e2
hex1c6dbd612c

122100212012 has 48 divisors (see below), whose sum is σ = 228734254560. Its totient is φ = 56861595648.

The previous prime is 122100211999. The next prime is 122100212023. The reversal of 122100212012 is 210212001221.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1701368 + ... + 1771680.

It is an arithmetic number, because the mean of its divisors is an integer number (4765296970).

Almost surely, 2122100212012 is an apocalyptic number.

It is an amenable number.

122100212012 is a deficient number, since it is larger than the sum of its proper divisors (106634042548).

122100212012 is a wasteful number, since it uses less digits than its factorization.

122100212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70722 (or 70720 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 122100212012 its reverse (210212001221), we get a palindrome (332312213233).

The spelling of 122100212012 in words is "one hundred twenty-two billion, one hundred million, two hundred twelve thousand, twelve".

Divisors: 1 2 4 19 38 73 76 146 292 313 626 1252 1387 2774 5548 5947 11894 22849 23788 45698 70313 91396 140626 281252 434131 868262 1335947 1736524 2671894 5132849 5343788 10265698 20531396 22007969 44015938 88031876 97524131 195048262 390096524 418151411 836302822 1606581737 1672605644 3213163474 6426326948 30525053003 61050106006 122100212012