212102103892 has 48 divisors (see below), whose sum is σ = 442723018752. Its totient is φ = 86933927520.

The previous prime is 212102103877. The next prime is 212102103893. The reversal of 212102103892 is 298301201212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212102103893) 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, 4284393 + ... + 4333615.

It is an arithmetic number, because the mean of its divisors is an integer number (9223396224).

Almost surely, 2^212102103892 is an apocalyptic number.

It is an amenable number.

212102103892 is an abundant number, since it is smaller than the sum of its proper divisors (230620914860).

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

212102103892 is a wasteful number, since it uses less digits than its factorization.

212102103892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55948 (or 55946 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 212102103892 in words is "two hundred twelve billion, one hundred two million, one hundred three thousand, eight hundred ninety-two".