202111221120 has 128 divisors (see below), whose sum is σ = 682125481440. Its totient is φ = 50725945344.

The previous prime is 202111221113. The next prime is 202111221173. The reversal of 202111221120 is 21122111202.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 202111221120.

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, 3063427 + ... + 3128706.

Almost surely, 2^202111221120 is an apocalyptic number.

202111221120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202111221120 is an abundant number, since it is smaller than the sum of its proper divisors (480014260320).

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

202111221120 is a wasteful number, since it uses less digits than its factorization.

202111221120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6192172 (or 6192160 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 202111221120 its reverse (21122111202), we get a palindrome (223233332322).

The spelling of 202111221120 in words is "two hundred two billion, one hundred eleven million, two hundred twenty-one thousand, one hundred twenty".