202421212392 has 64 divisors (see below), whose sum is σ = 578407075200. Its totient is φ = 57828556800.

The previous prime is 202421212249. The next prime is 202421212421. The reversal of 202421212392 is 293212124202.

202421212392 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1683892 + ... + 1800092.

It is an arithmetic number, because the mean of its divisors is an integer number (9037610550).

Almost surely, 2^202421212392 is an apocalyptic number.

It is an amenable number.

202421212392 is an abundant number, since it is smaller than the sum of its proper divisors (375985862808).

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

202421212392 is a wasteful number, since it uses less digits than its factorization.

202421212392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126586 (or 126582 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 202421212392 its reverse (293212124202), we get a palindrome (495633336594).

The spelling of 202421212392 in words is "two hundred two billion, four hundred twenty-one million, two hundred twelve thousand, three hundred ninety-two".