121100200012210 has 64 divisors (see below), whose sum is σ = 226304699572224. Its totient is φ = 46608708902400.

The previous prime is 121100200012163. The next prime is 121100200012219. The reversal of 121100200012210 is 12210002001121.

It is not an unprimeable number, because it can be changed into a prime (121100200012219) 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, 53997630 + ... + 56195590.

It is an arithmetic number, because the mean of its divisors is an integer number (3536010930816).

Almost surely, 2^{121100200012210} is an apocalyptic number.

121100200012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121100200012210 is a deficient number, since it is larger than the sum of its proper divisors (105204499560014).

121100200012210 is a wasteful number, since it uses less digits than its factorization.

121100200012210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2199019.

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

Adding to 121100200012210 its reverse (12210002001121), we get a palindrome (133310202013331).

The spelling of 121100200012210 in words is "one hundred twenty-one trillion, one hundred billion, two hundred million, twelve thousand, two hundred ten".