202112021202120 has 192 divisors, whose sum is σ = 673657246342080. Its totient is φ = 52524296068608.

The previous prime is 202112021202097. The next prime is 202112021202127. The reversal of 202112021202120 is 21202120211202.

It is a happy number.

202112021202120 is a `hidden beast` number, since 20 + 211 + 202 + 1 + 20 + 212 + 0 = 666.

It is a super-2 number, since 2×202112021202120² (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 a junction number, because it is equal to n+sod(n) for n = 202112021202093 and 202112021202102.

It is not an unprimeable number, because it can be changed into a prime (202112021202127) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7878627 + ... + 21593906.

It is an arithmetic number, because the mean of its divisors is an integer number (3508631491365).

Almost surely, 2^{202112021202120} is an apocalyptic number.

202112021202120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202112021202120 is an abundant number, since it is smaller than the sum of its proper divisors (471545225139960).

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

202112021202120 is a wasteful number, since it uses less digits than its factorization.

202112021202120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29473036 (or 29473029 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 202112021202120 its reverse (21202120211202), we get a palindrome (223314141413322).

The spelling of 202112021202120 in words is "two hundred two trillion, one hundred twelve billion, twenty-one million, two hundred two thousand, one hundred twenty".