20112112011102 has 32 divisors (see below), whose sum is σ = 40359522817152. Its totient is φ = 6681515997024.

The previous prime is 20112112011091. The next prime is 20112112011161. The reversal of 20112112011102 is 20111021121102.

It is a happy number.

It is a super-2 number, since 2×20112112011102² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 729168 + ... + 6384035.

It is an arithmetic number, because the mean of its divisors is an integer number (1261235088036).

Almost surely, 2^{20112112011102} is an apocalyptic number.

20112112011102 is an abundant number, since it is smaller than the sum of its proper divisors (20247410806050).

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

20112112011102 is a wasteful number, since it uses less digits than its factorization.

20112112011102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7114792.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 20112112011102 its reverse (20111021121102), we get a palindrome (40223133132204).

The spelling of 20112112011102 in words is "twenty trillion, one hundred twelve billion, one hundred twelve million, eleven thousand, one hundred two".