202101120211020 has 96 divisors (see below), whose sum is σ = 566209548656640. Its totient is φ = 53862554254080.

The previous prime is 202101120210953. The next prime is 202101120211021. The reversal of 202101120211020 is 20112021101202.

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

It is not an unprimeable number, because it can be changed into a prime (202101120211021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 731653654 + ... + 731929826.

It is an arithmetic number, because the mean of its divisors is an integer number (5898016131840).

Almost surely, 2^{202101120211020} is an apocalyptic number.

202101120211020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202101120211020 is an abundant number, since it is smaller than the sum of its proper divisors (364108428445620).

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

202101120211020 is a wasteful number, since it uses less digits than its factorization.

202101120211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283175 (or 283173 counting only the distinct ones).

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

Adding to 202101120211020 its reverse (20112021101202), we get a palindrome (222213141312222).

The spelling of 202101120211020 in words is "two hundred two trillion, one hundred one billion, one hundred twenty million, two hundred eleven thousand, twenty".