20112121102 has 16 divisors (see below), whose sum is σ = 30427333200. Its totient is φ = 9969822720.

The previous prime is 20112121087. The next prime is 20112121111.

20112121102 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244174 + ... + 315982.

It is an arithmetic number, because the mean of its divisors is an integer number (1901708325).

Almost surely, 2^20112121102 is an apocalyptic number.

20112121102 is a deficient number, since it is larger than the sum of its proper divisors (10315212098).

20112121102 is a wasteful number, since it uses less digits than its factorization.

20112121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73011.

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

The spelling of 20112121102 in words is "twenty billion, one hundred twelve million, one hundred twenty-one thousand, one hundred two".