3121022209152 has 96 divisors (see below), whose sum is σ = 8585943191280. Its totient is φ = 1004466813952.

The previous prime is 3121022209103. The next prime is 3121022209153. The reversal of 3121022209152 is 2519022201213.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (3121022209153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4509198 + ... + 5155085.

Almost surely, 2^{3121022209152} is an apocalyptic number.

3121022209152 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3121022209152 is an abundant number, since it is smaller than the sum of its proper divisors (5464920982128).

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

3121022209152 is an equidigital number, since it uses as much as digits as its factorization.

3121022209152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9664358 (or 9664317 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 3121022209152 in words is "three trillion, one hundred twenty-one billion, twenty-two million, two hundred nine thousand, one hundred fifty-two".