2101220120210 has 16 divisors (see below), whose sum is σ = 3782218752000. Its totient is φ = 840483040176.

The previous prime is 2101220120201. The next prime is 2101220120221. The reversal of 2101220120210 is 120210221012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1470641 + ... + 2522939.

It is an arithmetic number, because the mean of its divisors is an integer number (236388672000).

Almost surely, 2^{2101220120210} is an apocalyptic number.

2101220120210 is a deficient number, since it is larger than the sum of its proper divisors (1680998631790).

2101220120210 is a wasteful number, since it uses less digits than its factorization.

2101220120210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251985.

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

Adding to 2101220120210 its reverse (120210221012), we get a palindrome (2221430341222).

The spelling of 2101220120210 in words is "two trillion, one hundred one billion, two hundred twenty million, one hundred twenty thousand, two hundred ten".