2102120312208 has 80 divisors (see below), whose sum is σ = 6233600547840. Its totient is φ = 597959941248.

The previous prime is 2102120312197. The next prime is 2102120312209. The reversal of 2102120312208 is 8022130212012.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (2102120312209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13704148 + ... + 13856691.

It is an arithmetic number, because the mean of its divisors is an integer number (77920006848).

Almost surely, 2^{2102120312208} is an apocalyptic number.

2102120312208 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2102120312208 is an abundant number, since it is smaller than the sum of its proper divisors (4131480235632).

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

2102120312208 is a wasteful number, since it uses less digits than its factorization.

2102120312208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27561084 (or 27561078 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The spelling of 2102120312208 in words is "two trillion, one hundred two billion, one hundred twenty million, three hundred twelve thousand, two hundred eight".