220252431354 has 16 divisors (see below), whose sum is σ = 455694685920. Its totient is φ = 70885839920.

The previous prime is 220252431349. The next prime is 220252431379. The reversal of 220252431354 is 453134252022.

It is a super-2 number, since 2×220252431354² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 632909112 + ... + 632909459.

It is an arithmetic number, because the mean of its divisors is an integer number (28480917870).

Almost surely, 2^220252431354 is an apocalyptic number.

220252431354 is an abundant number, since it is smaller than the sum of its proper divisors (235442254566).

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

220252431354 is a wasteful number, since it uses less digits than its factorization.

220252431354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265818605.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 220252431354 its reverse (453134252022), we get a palindrome (673386683376).

The spelling of 220252431354 in words is "two hundred twenty billion, two hundred fifty-two million, four hundred thirty-one thousand, three hundred fifty-four".