210120211012220 has 48 divisors (see below), whose sum is σ = 454356743244768. Its totient is φ = 81573270282240.

The previous prime is 210120211012189. The next prime is 210120211012249. The reversal of 210120211012220 is 22210112021012.

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, 663686714 + ... + 664003233.

It is an arithmetic number, because the mean of its divisors is an integer number (9465765484266).

Almost surely, 2^{210120211012220} is an apocalyptic number.

210120211012220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210120211012220 is an abundant number, since it is smaller than the sum of its proper divisors (244236532232548).

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

210120211012220 is a wasteful number, since it uses less digits than its factorization.

210120211012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327690190 (or 1327690188 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 210120211012220 its reverse (22210112021012), we get a palindrome (232330323033232).

The spelling of 210120211012220 in words is "two hundred ten trillion, one hundred twenty billion, two hundred eleven million, twelve thousand, two hundred twenty".