210210111121231 has 16 divisors (see below), whose sum is σ = 229760832559104. Its totient is φ = 191142396697824.

The previous prime is 210210111121207. The next prime is 210210111121243. The reversal of 210210111121231 is 132121111012012.

It is not a de Polignac number, because 210210111121231 - 2³⁹ = 209660355307343 is a prime.

It is a super-2 number, since 2×210210111121231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210210111121199 and 210210111121208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210210111128231) 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, 111338370 + ... + 113210656.

It is an arithmetic number, because the mean of its divisors is an integer number (14360052034944).

Almost surely, 2^{210210111121231} is an apocalyptic number.

210210111121231 is a deficient number, since it is larger than the sum of its proper divisors (19550721437873).

210210111121231 is a wasteful number, since it uses less digits than its factorization.

210210111121231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001270.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 210210111121231 its reverse (132121111012012), we get a palindrome (342331222133243).

The spelling of 210210111121231 in words is "two hundred ten trillion, two hundred ten billion, one hundred eleven million, one hundred twenty-one thousand, two hundred thirty-one".