210010120121 has 16 divisors (see below), whose sum is σ = 212957610624. Its totient is φ = 207082251264.

The previous prime is 210010120051. The next prime is 210010120139. The reversal of 210010120121 is 121021010012.

It is a cyclic number.

It is not a de Polignac number, because 210010120121 - 2²² = 210005925817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210010123121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44938841 + ... + 44943513.

It is an arithmetic number, because the mean of its divisors is an integer number (13309850664).

Almost surely, 2^210010120121 is an apocalyptic number.

It is an amenable number.

210010120121 is a deficient number, since it is larger than the sum of its proper divisors (2947490503).

210010120121 is a wasteful number, since it uses less digits than its factorization.

210010120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6640.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 210010120121 its reverse (121021010012), we get a palindrome (331031130133).

The spelling of 210010120121 in words is "two hundred ten billion, ten million, one hundred twenty thousand, one hundred twenty-one".