220331454012 has 18 divisors (see below), whose sum is σ = 556948953288. Its totient is φ = 73443817992.

The previous prime is 220331453897. The next prime is 220331454103. The reversal of 220331454012 is 210454133022.

220331454012 is a `hidden beast` number, since 2 + 203 + 3 + 1 + 454 + 0 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×220331454012² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3060159048 + ... + 3060159119.

It is an arithmetic number, because the mean of its divisors is an integer number (30941608516).

Almost surely, 2^220331454012 is an apocalyptic number.

It is an amenable number.

220331454012 is an abundant number, since it is smaller than the sum of its proper divisors (336617499276).

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

220331454012 is a wasteful number, since it uses less digits than its factorization.

220331454012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6120318177 (or 6120318172 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 220331454012 its reverse (210454133022), we get a palindrome (430785587034).

The spelling of 220331454012 in words is "two hundred twenty billion, three hundred thirty-one million, four hundred fifty-four thousand, twelve".