20122101112 has 8 divisors (see below), whose sum is σ = 37728939600. Its totient is φ = 10061050552.

The previous prime is 20122101101. The next prime is 20122101143. The reversal of 20122101112 is 21110122102.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 20122101092 and 20122101101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1257631312 + ... + 1257631327.

It is an arithmetic number, because the mean of its divisors is an integer number (4716117450).

Almost surely, 2^20122101112 is an apocalyptic number.

It is an amenable number.

20122101112 is a deficient number, since it is larger than the sum of its proper divisors (17606838488).

20122101112 is a wasteful number, since it uses less digits than its factorization.

20122101112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2515262645 (or 2515262641 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20122101112 its reverse (21110122102), we get a palindrome (41232223214).

The spelling of 20122101112 in words is "twenty billion, one hundred twenty-two million, one hundred one thousand, one hundred twelve".