331212222021132 has 96 divisors (see below), whose sum is σ = 913970284093440. Its totient is φ = 103365686672640.

The previous prime is 331212222021073. The next prime is 331212222021151. The reversal of 331212222021132 is 231120222212133.

331212222021132 is a `hidden beast` number, since 3 + 3 + 121 + 222 + 202 + 113 + 2 = 666.

It is a super-2 number, since 2×331212222021132² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 331212222021096 and 331212222021105.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 471897528 + ... + 472598879.

It is an arithmetic number, because the mean of its divisors is an integer number (9520523792640).

Almost surely, 2^{331212222021132} is an apocalyptic number.

It is an amenable number.

331212222021132 is an abundant number, since it is smaller than the sum of its proper divisors (582758062072308).

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

331212222021132 is a wasteful number, since it uses less digits than its factorization.

331212222021132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944496628 (or 944496620 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 331212222021132 its reverse (231120222212133), we get a palindrome (562332444233265).

The spelling of 331212222021132 in words is "three hundred thirty-one trillion, two hundred twelve billion, two hundred twenty-two million, twenty-one thousand, one hundred thirty-two".