220031330312211 has 16 divisors (see below), whose sum is σ = 330369622053888. Its totient is φ = 129050633613600.

The previous prime is 220031330312137. The next prime is 220031330312249. The reversal of 220031330312211 is 112213033130022.

It is not a de Polignac number, because 220031330312211 - 2¹⁸ = 220031330050067 is a prime.

It is a super-2 number, since 2×220031330312211² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220031330312711) 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, 107542193656 + ... + 107542195701.

It is an arithmetic number, because the mean of its divisors is an integer number (20648101378368).

Almost surely, 2^{220031330312211} is an apocalyptic number.

220031330312211 is a deficient number, since it is larger than the sum of its proper divisors (110338291741677).

220031330312211 is a wasteful number, since it uses less digits than its factorization.

220031330312211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215084389402.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 220031330312211 its reverse (112213033130022), we get a palindrome (332244363442233).

The spelling of 220031330312211 in words is "two hundred twenty trillion, thirty-one billion, three hundred thirty million, three hundred twelve thousand, two hundred eleven".