210112021112021 has 8 divisors (see below), whose sum is σ = 240685165718784. Its totient is φ = 179678161902960.

The previous prime is 210112021111981. The next prime is 210112021112153. The reversal of 210112021112021 is 120211120211012.

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

It is a de Polignac number, because none of the positive numbers 2^k-210112021112021 is a prime.

It is a super-2 number, since 2×210112021112021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210112021102021) 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, 34821346190 + ... + 34821352223.

It is an arithmetic number, because the mean of its divisors is an integer number (30085645714848).

Almost surely, 2^{210112021112021} is an apocalyptic number.

It is an amenable number.

210112021112021 is a deficient number, since it is larger than the sum of its proper divisors (30573144606763).

210112021112021 is an equidigital number, since it uses as much as digits as its factorization.

210112021112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69642698851.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 210112021112021 its reverse (120211120211012), we get a palindrome (330323141323033).

The spelling of 210112021112021 in words is "two hundred ten trillion, one hundred twelve billion, twenty-one million, one hundred twelve thousand, twenty-one".