202212400124 has 36 divisors (see below), whose sum is σ = 420405130656. Its totient is φ = 84818571264.

The previous prime is 202212400123. The next prime is 202212400133. The reversal of 202212400124 is 421004212202.

It is a junction number, because it is equal to n+sod(n) for n = 202212400096 and 202212400105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202212400123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10966277 + ... + 10984700.

It is an arithmetic number, because the mean of its divisors is an integer number (11677920296).

Almost surely, 2^202212400124 is an apocalyptic number.

It is an amenable number.

202212400124 is an abundant number, since it is smaller than the sum of its proper divisors (218192730532).

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

202212400124 is a wasteful number, since it uses less digits than its factorization.

202212400124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21951042 (or 21951033 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 202212400124 its reverse (421004212202), we get a palindrome (623216612326).

The spelling of 202212400124 in words is "two hundred two billion, two hundred twelve million, four hundred thousand, one hundred twenty-four".