210211130121 has 8 divisors (see below), whose sum is σ = 280285428384. Its totient is φ = 140138792640.

The previous prime is 210211130113. The next prime is 210211130131. The reversal of 210211130121 is 121031112012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 210211130121 - 2³ = 210211130113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210211130121.

It is not an unprimeable number, because it can be changed into a prime (210211130131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218535 + ... + 684236.

It is an arithmetic number, because the mean of its divisors is an integer number (35035678548).

Almost surely, 2^210211130121 is an apocalyptic number.

It is an amenable number.

210211130121 is a deficient number, since it is larger than the sum of its proper divisors (70074298263).

210211130121 is an equidigital number, since it uses as much as digits as its factorization.

210211130121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980391.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 210211130121 its reverse (121031112012), we get a palindrome (331242242133).

The spelling of 210211130121 in words is "two hundred ten billion, two hundred eleven million, one hundred thirty thousand, one hundred twenty-one".