2101010211220 has 24 divisors (see below), whose sum is σ = 4412498428800. Its totient is φ = 840332277792.

The previous prime is 2101010211203. The next prime is 2101010211221. The reversal of 2101010211220 is 221120101012.

It is a self number, because there is not a number n which added to its sum of digits gives 2101010211220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101010211221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4247680 + ... + 4716439.

It is an arithmetic number, because the mean of its divisors is an integer number (183854101200).

Almost surely, 2^{2101010211220} is an apocalyptic number.

2101010211220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101010211220 is an abundant number, since it is smaller than the sum of its proper divisors (2311488217580).

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

2101010211220 is a wasteful number, since it uses less digits than its factorization.

2101010211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8975847 (or 8975845 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2101010211220 its reverse (221120101012), we get a palindrome (2322130312232).

The spelling of 2101010211220 in words is "two trillion, one hundred one billion, ten million, two hundred eleven thousand, two hundred twenty".