2121200120010 has 64 divisors (see below), whose sum is σ = 5127437790720. Its totient is φ = 561600529920.

The previous prime is 2121200119991. The next prime is 2121200120029. The reversal of 2121200120010 is 100210021212.

It is an interprime number because it is at equal distance from previous prime (2121200119991) and next prime (2121200120029).

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, 3447390 + ... + 4015830.

It is an arithmetic number, because the mean of its divisors is an integer number (80116215480).

Almost surely, 2^{2121200120010} is an apocalyptic number.

2121200120010 is an abundant number, since it is smaller than the sum of its proper divisors (3006237670710).

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

2121200120010 is a wasteful number, since it uses less digits than its factorization.

2121200120010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569343.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2121200120010 its reverse (100210021212), we get a palindrome (2221410141222).

The spelling of 2121200120010 in words is "two trillion, one hundred twenty-one billion, two hundred million, one hundred twenty thousand, ten".