212234774948 has 48 divisors (see below), whose sum is σ = 432614770560. Its totient is φ = 89213439744.

The previous prime is 212234774929. The next prime is 212234774971. The reversal of 212234774948 is 849477432212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a self number, because there is not a number n which added to its sum of digits gives 212234774948.

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, 5073743 + ... + 5115401.

It is an arithmetic number, because the mean of its divisors is an integer number (9012807720).

Almost surely, 2^212234774948 is an apocalyptic number.

212234774948 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

212234774948 is an abundant number, since it is smaller than the sum of its proper divisors (220379995612).

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

212234774948 is a wasteful number, since it uses less digits than its factorization.

212234774948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45156 (or 45154 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 53.

The spelling of 212234774948 in words is "two hundred twelve billion, two hundred thirty-four million, seven hundred seventy-four thousand, nine hundred forty-eight".