3213101220120 has 96 divisors (see below), whose sum is σ = 11391904339920. Its totient is φ = 778933628160.

The previous prime is 3213101220101. The next prime is 3213101220137. The reversal of 3213101220120 is 210221013123.

3213101220120 is a `hidden beast` number, since 321 + 3 + 1 + 0 + 1 + 220 + 120 = 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 = 3213101220093 and 3213101220102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 405690639 + ... + 405698558.

Almost surely, 2^{3213101220120} is an apocalyptic number.

3213101220120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3213101220120 is an abundant number, since it is smaller than the sum of its proper divisors (8178803119800).

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

3213101220120 is a wasteful number, since it uses less digits than its factorization.

3213101220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811389225 (or 811389218 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 3213101220120 its reverse (210221013123), we get a palindrome (3423322233243).

The spelling of 3213101220120 in words is "three trillion, two hundred thirteen billion, one hundred one million, two hundred twenty thousand, one hundred twenty".