202111122202120 has 64 divisors (see below), whose sum is σ = 463546632835440. Its totient is φ = 79282032460800.

The previous prime is 202111122202081. The next prime is 202111122202127. The reversal of 202111122202120 is 21202221111202.

202111122202120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 200124990074916 + 1986132127204 = 14146554^2 + 1409302^2 .

It is not an unprimeable number, because it can be changed into a prime (202111122202127) 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, 17725311 + ... + 26803150.

Almost surely, 2^{202111122202120} is an apocalyptic number.

202111122202120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202111122202120 is an abundant number, since it is smaller than the sum of its proper divisors (261435510633320).

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

202111122202120 is a wasteful number, since it uses less digits than its factorization.

202111122202120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44530666 (or 44530662 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 202111122202120 its reverse (21202221111202), we get a palindrome (223313343313322).

The spelling of 202111122202120 in words is "two hundred two trillion, one hundred eleven billion, one hundred twenty-two million, two hundred two thousand, one hundred twenty".