2120102121210 has 32 divisors (see below), whose sum is σ = 5225765231232. Its totient is φ = 550080550080.

The previous prime is 2120102121197. The next prime is 2120102121223. The reversal of 2120102121210 is 121212010212.

It is an interprime number because it is at equal distance from previous prime (2120102121197) and next prime (2120102121223).

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 2120102121210.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 954999846 + ... + 955002065.

It is an arithmetic number, because the mean of its divisors is an integer number (163305163476).

Almost surely, 2^{2120102121210} is an apocalyptic number.

2120102121210 is an abundant number, since it is smaller than the sum of its proper divisors (3105663110022).

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

2120102121210 is a wasteful number, since it uses less digits than its factorization.

2120102121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910001958.

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

Adding to 2120102121210 its reverse (121212010212), we get a palindrome (2241314131422).

The spelling of 2120102121210 in words is "two trillion, one hundred twenty billion, one hundred two million, one hundred twenty-one thousand, two hundred ten".