210130211132121 has 16 divisors (see below), whose sum is σ = 326239896530304. Its totient is φ = 117808851523584.

The previous prime is 210130211132081. The next prime is 210130211132137. The reversal of 210130211132121 is 121231112031012.

It is not a de Polignac number, because 210130211132121 - 2¹⁵ = 210130211099353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (210130211132921) 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, 94398117096 + ... + 94398119321.

It is an arithmetic number, because the mean of its divisors is an integer number (20389993533144).

Almost surely, 2^{210130211132121} is an apocalyptic number.

210130211132121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

210130211132121 is a deficient number, since it is larger than the sum of its proper divisors (116109685398183).

210130211132121 is a wasteful number, since it uses less digits than its factorization.

210130211132121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188796236480.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 210130211132121 its reverse (121231112031012), we get a palindrome (331361323163133).

The spelling of 210130211132121 in words is "two hundred ten trillion, one hundred thirty billion, two hundred eleven million, one hundred thirty-two thousand, one hundred twenty-one".