202412234421 has 16 divisors (see below), whose sum is σ = 299879521920. Its totient is φ = 134937194400.

The previous prime is 202412234407. The next prime is 202412234513. The reversal of 202412234421 is 124432214202.

It is a happy number.

202412234421 is a `hidden beast` number, since 2 + 0 + 2 + 4 + 1 + 2 + 234 + 421 = 666.

It is not a de Polignac number, because 202412234421 - 2⁵ = 202412234389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202412634421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 904321 + ... + 1105721.

It is an arithmetic number, because the mean of its divisors is an integer number (18742470120).

Almost surely, 2^202412234421 is an apocalyptic number.

It is an amenable number.

202412234421 is a deficient number, since it is larger than the sum of its proper divisors (97467287499).

202412234421 is a wasteful number, since it uses less digits than its factorization.

202412234421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238633 (or 238627 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 202412234421 its reverse (124432214202), we get a palindrome (326844448623).

The spelling of 202412234421 in words is "two hundred two billion, four hundred twelve million, two hundred thirty-four thousand, four hundred twenty-one".