212102103120 has 40 divisors (see below), whose sum is σ = 657516520416. Its totient is φ = 56560560768.

The previous prime is 212102103091. The next prime is 212102103131. The reversal of 212102103120 is 21301201212.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×212102103120² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 212102103120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 441879142 + ... + 441879621.

Almost surely, 2^212102103120 is an apocalyptic number.

212102103120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212102103120 is an abundant number, since it is smaller than the sum of its proper divisors (445414417296).

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

212102103120 is a wasteful number, since it uses less digits than its factorization.

212102103120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883758779 (or 883758773 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 212102103120 its reverse (21301201212), we get a palindrome (233403304332).

The spelling of 212102103120 in words is "two hundred twelve billion, one hundred two million, one hundred three thousand, one hundred twenty".