2120100221210 has 16 divisors (see below), whose sum is σ = 3816729693000. Its totient is φ = 847918022976.

The previous prime is 2120100221207. The next prime is 2120100221221. The reversal of 2120100221210 is 121220010212.

It can be written as a sum of positive squares in 4 ways, for example, as 2120049569521 + 50651689 = 1456039^2 + 7117^2 .

It is a Curzon number.

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, 15185225 + ... + 15324204.

Almost surely, 2^{2120100221210} is an apocalyptic number.

2120100221210 is a deficient number, since it is larger than the sum of its proper divisors (1696629471790).

2120100221210 is a wasteful number, since it uses less digits than its factorization.

2120100221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30516385.

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

Adding to 2120100221210 its reverse (121220010212), we get a palindrome (2241320231422).

It can be divided in two parts, 21201002 and 21210, that added together give a palindrome (21222212).

The spelling of 2120100221210 in words is "two trillion, one hundred twenty billion, one hundred million, two hundred twenty-one thousand, two hundred ten".