212244124652 has 36 divisors (see below), whose sum is σ = 438517205784. Its totient is φ = 89604123840.

The previous prime is 212244124649. The next prime is 212244124667. The reversal of 212244124652 is 256421442212.

It is a super-2 number, since 2×212244124652² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8068049 + ... + 8094312.

It is an arithmetic number, because the mean of its divisors is an integer number (12181033494).

Almost surely, 2^212244124652 is an apocalyptic number.

It is an amenable number.

212244124652 is an abundant number, since it is smaller than the sum of its proper divisors (226273081132).

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

212244124652 is a wasteful number, since it uses less digits than its factorization.

212244124652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16162446 (or 16162437 counting only the distinct ones).

The product of its digits is 61440, while the sum is 35.

Adding to 212244124652 its reverse (256421442212), we get a palindrome (468665566864).

The spelling of 212244124652 in words is "two hundred twelve billion, two hundred forty-four million, one hundred twenty-four thousand, six hundred fifty-two".