312000013220022 has 80 divisors (see below), whose sum is σ = 729618585711840. Its totient is φ = 99525179513088.

The previous prime is 312000013220009. The next prime is 312000013220039. The reversal of 312000013220022 is 220022310000213.

312000013220022 is a `hidden beast` number, since 312 + 0 + 0 + 0 + 0 + 132 + 200 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 312000013219977 and 312000013220004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 293324178 + ... + 294385925.

It is an arithmetic number, because the mean of its divisors is an integer number (9120232321398).

Almost surely, 2^{312000013220022} is an apocalyptic number.

312000013220022 is an abundant number, since it is smaller than the sum of its proper divisors (417618572491818).

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

312000013220022 is a wasteful number, since it uses less digits than its factorization.

312000013220022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587710259 (or 587710250 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 312000013220022 its reverse (220022310000213), we get a palindrome (532022323220235).

The spelling of 312000013220022 in words is "three hundred twelve trillion, thirteen million, two hundred twenty thousand, twenty-two".