210112031311220 has 48 divisors (see below), whose sum is σ = 444719716529088. Its totient is φ = 83382913624320.

The previous prime is 210112031311213. The next prime is 210112031311229. The reversal of 210112031311220 is 22113130211012.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 210112031311192 and 210112031311201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210112031311229) 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, 54575969 + ... + 58298888.

It is an arithmetic number, because the mean of its divisors is an integer number (9264994094356).

Almost surely, 2^{210112031311220} is an apocalyptic number.

210112031311220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210112031311220 is an abundant number, since it is smaller than the sum of its proper divisors (234607685217868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210112031311220 is a wasteful number, since it uses less digits than its factorization.

210112031311220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112875600 (or 112875598 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 210112031311220 its reverse (22113130211012), we get a palindrome (232225161522232).

The spelling of 210112031311220 in words is "two hundred ten trillion, one hundred twelve billion, thirty-one million, three hundred eleven thousand, two hundred twenty".