2121102011210 has 64 divisors (see below), whose sum is σ = 4701070483200. Its totient is φ = 671006149632.

The previous prime is 2121102011209. The next prime is 2121102011219. The reversal of 2121102011210 is 121102011212.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (2121102011219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1630226 + ... + 2626754.

It is an arithmetic number, because the mean of its divisors is an integer number (73454226300).

Almost surely, 2^{2121102011210} is an apocalyptic number.

2121102011210 is an abundant number, since it is smaller than the sum of its proper divisors (2579968471990).

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

2121102011210 is a wasteful number, since it uses less digits than its factorization.

2121102011210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998895.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2121102011210 its reverse (121102011212), we get a palindrome (2242204022422).

The spelling of 2121102011210 in words is "two trillion, one hundred twenty-one billion, one hundred two million, eleven thousand, two hundred ten".