202021202111112 has 80 divisors (see below), whose sum is σ = 568383850890240. Its totient is φ = 67038425764704.

The previous prime is 202021202111101. The next prime is 202021202111117. The reversal of 202021202111112 is 211111202120202.

202021202111112 is a `hidden beast` number, since 20 + 202 + 120 + 211 + 1 + 112 = 666.

It is a super-2 number, since 2×202021202111112² (a number of 29 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 (202021202111117) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 698871448 + ... + 699160455.

It is an arithmetic number, because the mean of its divisors is an integer number (7104798136128).

Almost surely, 2^{202021202111112} is an apocalyptic number.

It is an amenable number.

202021202111112 is an abundant number, since it is smaller than the sum of its proper divisors (366362648779128).

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

202021202111112 is a wasteful number, since it uses less digits than its factorization.

202021202111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398032144 (or 1398032131 counting only the distinct ones).

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

Adding to 202021202111112 its reverse (211111202120202), we get a palindrome (413132404231314).

The spelling of 202021202111112 in words is "two hundred two trillion, twenty-one billion, two hundred two million, one hundred eleven thousand, one hundred twelve".