331000123212220 has 96 divisors (see below), whose sum is σ = 866732518826496. Its totient is φ = 103155296428800.

The previous prime is 331000123212197. The next prime is 331000123212221. The reversal of 331000123212220 is 22212321000133.

It is a super-3 number, since 3×331000123212220³ (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 331000123212191 and 331000123212200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331000123212221) 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, 2426271 + ... + 25843510.

It is an arithmetic number, because the mean of its divisors is an integer number (9028463737776).

Almost surely, 2^{331000123212220} is an apocalyptic number.

It is an amenable number.

331000123212220 is an abundant number, since it is smaller than the sum of its proper divisors (535732395614276).

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

331000123212220 is a wasteful number, since it uses less digits than its factorization.

331000123212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28277411 (or 28277409 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 331000123212220 its reverse (22212321000133), we get a palindrome (353212444212353).

The spelling of 331000123212220 in words is "three hundred thirty-one trillion, one hundred twenty-three million, two hundred twelve thousand, two hundred twenty".