202111220120 has 16 divisors (see below), whose sum is σ = 454750245360. Its totient is φ = 80844488032.

The previous prime is 202111220111. The next prime is 202111220137. The reversal of 202111220120 is 21022111202.

202111220120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 202111220095 and 202111220104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2526390212 + ... + 2526390291.

It is an arithmetic number, because the mean of its divisors is an integer number (28421890335).

Almost surely, 2^202111220120 is an apocalyptic number.

202111220120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202111220120 is an abundant number, since it is smaller than the sum of its proper divisors (252639025240).

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

202111220120 is a wasteful number, since it uses less digits than its factorization.

202111220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5052780514 (or 5052780510 counting only the distinct ones).

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

Adding to 202111220120 its reverse (21022111202), we get a palindrome (223133331322).

The spelling of 202111220120 in words is "two hundred two billion, one hundred eleven million, two hundred twenty thousand, one hundred twenty".