2101012221210 has 128 divisors (see below), whose sum is σ = 6134239641600. Its totient is φ = 449844088320.

The previous prime is 2101012221181. The next prime is 2101012221223. The reversal of 2101012221210 is 121222101012.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2101012221210.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2603146 + ... + 3313365.

It is an arithmetic number, because the mean of its divisors is an integer number (47923747200).

Almost surely, 2^{2101012221210} is an apocalyptic number.

2101012221210 is an abundant number, since it is smaller than the sum of its proper divisors (4033227420390).

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

2101012221210 is a wasteful number, since it uses less digits than its factorization.

2101012221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5916636.

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

Adding to 2101012221210 its reverse (121222101012), we get a palindrome (2222234322222).

The spelling of 2101012221210 in words is "two trillion, one hundred one billion, twelve million, two hundred twenty-one thousand, two hundred ten".