331000010022 has 64 divisors (see below), whose sum is σ = 729593733888. Its totient is φ = 99274320000.

The previous prime is 331000009961. The next prime is 331000010023. The reversal of 331000010022 is 220010000133.

It is a happy number.

It is a super-2 number, since 2×331000010022² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331000010023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23063853 + ... + 23078199.

It is an arithmetic number, because the mean of its divisors is an integer number (11399902092).

Almost surely, 2^331000010022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331000010022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364796866944).

331000010022 is an abundant number, since it is smaller than the sum of its proper divisors (398593723866).

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

331000010022 is a wasteful number, since it uses less digits than its factorization.

331000010022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17925.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 331000010022 its reverse (220010000133), we get a palindrome (551010010155).

The spelling of 331000010022 in words is "three hundred thirty-one billion, ten thousand, twenty-two".