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121021201122 = 2340075033741
BaseRepresentation
bin111000010110101101…
…1001111101011100010
3102120101011202000002020
41300231123033223202
53440322411413442
6131332452202310
711513006144103
oct1605533175342
9376334660066
10121021201122
1147363349698
121b555909396
13b5489385a3
145c00c123aa
1532349739ec
hex1c2d6cfae2

121021201122 has 16 divisors (see below), whose sum is σ = 242102855232. Its totient is φ = 40330324880.

The previous prime is 121021201121. The next prime is 121021201151. The reversal of 121021201122 is 221102120121.

It is a super-2 number, since 2×1210212011222 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121021201121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2492829 + ... + 2540912.

It is an arithmetic number, because the mean of its divisors is an integer number (15131428452).

Almost surely, 2121021201122 is an apocalyptic number.

121021201122 is an abundant number, since it is smaller than the sum of its proper divisors (121081654110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121021201122 is a wasteful number, since it uses less digits than its factorization.

121021201122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5037753.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121021201122 its reverse (221102120121), we get a palindrome (342123321243).

The spelling of 121021201122 in words is "one hundred twenty-one billion, twenty-one million, two hundred one thousand, one hundred twenty-two".

Divisors: 1 2 3 6 4007 8014 12021 24042 5033741 10067482 15101223 30202446 20170200187 40340400374 60510600561 121021201122