20202111122112 has 112 divisors (see below), whose sum is σ = 60057774626400. Its totient is φ = 6658373652480.

The previous prime is 20202111122111. The next prime is 20202111122117. The reversal of 20202111122112 is 21122111120202.

It is a super-2 number, since 2×20202111122112² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20202111122111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65526189 + ... + 65833772.

Almost surely, 2^{20202111122112} is an apocalyptic number.

It is an amenable number.

20202111122112 is an abundant number, since it is smaller than the sum of its proper divisors (39855663504288).

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

20202111122112 is a wasteful number, since it uses less digits than its factorization.

20202111122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131360071 (or 131360055 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 20202111122112 its reverse (21122111120202), we get a palindrome (41324222242314).

The spelling of 20202111122112 in words is "twenty trillion, two hundred two billion, one hundred eleven million, one hundred twenty-two thousand, one hundred twelve".