220311032412 has 24 divisors (see below), whose sum is σ = 514097987200. Its totient is φ = 73431452016.

The previous prime is 220311032411. The next prime is 220311032467. The reversal of 220311032412 is 214230113022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220311032411) 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, 528112 + ... + 848247.

Almost surely, 2^220311032412 is an apocalyptic number.

It is an amenable number.

220311032412 is an abundant number, since it is smaller than the sum of its proper divisors (293786954788).

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

220311032412 is a wasteful number, since it uses less digits than its factorization.

220311032412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389705 (or 1389703 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 220311032412 its reverse (214230113022), we get a palindrome (434541145434).

The spelling of 220311032412 in words is "two hundred twenty billion, three hundred eleven million, thirty-two thousand, four hundred twelve".