20202112112 has 160 divisors (see below), whose sum is σ = 51519452544. Its totient is φ = 7446528000.

The previous prime is 20202112043. The next prime is 20202112127. The reversal of 20202112112 is 21121120202.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2495912 + ... + 2503992.

Almost surely, 2^20202112112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20202112112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25759726272).

20202112112 is an abundant number, since it is smaller than the sum of its proper divisors (31317340432).

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

20202112112 is a wasteful number, since it uses less digits than its factorization.

20202112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8227 (or 8221 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20202112112 its reverse (21121120202), we get a palindrome (41323232314).

The spelling of 20202112112 in words is "twenty billion, two hundred two million, one hundred twelve thousand, one hundred twelve".