2120021110102 has 64 divisors (see below), whose sum is σ = 3906577382400. Its totient is φ = 843167977344.

The previous prime is 2120021110093. The next prime is 2120021110133. The reversal of 2120021110102 is 2010111200212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1549248 + ... + 2576860.

It is an arithmetic number, because the mean of its divisors is an integer number (61040271600).

Almost surely, 2^{2120021110102} is an apocalyptic number.

2120021110102 is a deficient number, since it is larger than the sum of its proper divisors (1786556272298).

2120021110102 is a wasteful number, since it uses less digits than its factorization.

2120021110102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027837.

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

Adding to 2120021110102 its reverse (2010111200212), we get a palindrome (4130132310314).

The spelling of 2120021110102 in words is "two trillion, one hundred twenty billion, twenty-one million, one hundred ten thousand, one hundred two".