212361053212 has 48 divisors (see below), whose sum is σ = 463957304832. Its totient is φ = 82626626880.

The previous prime is 212361053197. The next prime is 212361053227. The reversal of 212361053212 is 212350163212.

It is an interprime number because it is at equal distance from previous prime (212361053197) and next prime (212361053227).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235143 + ... + 692830.

It is an arithmetic number, because the mean of its divisors is an integer number (9665777184).

Almost surely, 2^212361053212 is an apocalyptic number.

212361053212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212361053212 is an abundant number, since it is smaller than the sum of its proper divisors (251596251620).

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

212361053212 is a wasteful number, since it uses less digits than its factorization.

212361053212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928738 (or 928736 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

Subtracting from 212361053212 its reverse (212350163212), we obtain a square (10890000 = 3300²).

The spelling of 212361053212 in words is "two hundred twelve billion, three hundred sixty-one million, fifty-three thousand, two hundred twelve".