202421444122 has 16 divisors (see below), whose sum is σ = 303898212072. Its totient is φ = 101122076160.

The previous prime is 202421444087. The next prime is 202421444129. The reversal of 202421444122 is 221444124202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 77981121001 + 124440323121 = 279251^2 + 352761^2 .

It is not an unprimeable number, because it can be changed into a prime (202421444129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19249138 + ... + 19259650.

Almost surely, 2^202421444122 is an apocalyptic number.

202421444122 is a deficient number, since it is larger than the sum of its proper divisors (101476767950).

202421444122 is a wasteful number, since it uses less digits than its factorization.

202421444122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18033.

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 202421444122 its reverse (221444124202), we get a palindrome (423865568324).

The spelling of 202421444122 in words is "two hundred two billion, four hundred twenty-one million, four hundred forty-four thousand, one hundred twenty-two".