220021010211231 has 6 divisors (see below), whose sum is σ = 317808125860680. Its totient is φ = 146680673474148.

The previous prime is 220021010211229. The next prime is 220021010211253. The reversal of 220021010211231 is 132112010120022.

220021010211231 is a `hidden beast` number, since 2 + 2 + 0 + 0 + 210 + 10 + 211 + 231 = 666.

It is not a de Polignac number, because 220021010211231 - 2¹ = 220021010211229 is a prime.

It is a super-2 number, since 2×220021010211231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220021050211231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12223389456171 + ... + 12223389456188.

It is an arithmetic number, because the mean of its divisors is an integer number (52968020976780).

Almost surely, 2^{220021010211231} is an apocalyptic number.

220021010211231 is a deficient number, since it is larger than the sum of its proper divisors (97787115649449).

220021010211231 is a wasteful number, since it uses less digits than its factorization.

220021010211231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24446778912365 (or 24446778912362 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 220021010211231 its reverse (132112010120022), we get a palindrome (352133020331253).

The spelling of 220021010211231 in words is "two hundred twenty trillion, twenty-one billion, ten million, two hundred eleven thousand, two hundred thirty-one".