12550202442 has 12 divisors (see below), whose sum is σ = 27192105330. Its totient is φ = 4183400808.

The previous prime is 12550202419. The next prime is 12550202447. The reversal of 12550202442 is 24420205521.

12550202442 is a `hidden beast` number, since 12 + 5 + 5 + 0 + 202 + 442 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10463448681 + 2086753761 = 102291^2 + 45681^2 .

It is not an unprimeable number, because it can be changed into a prime (12550202447) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 348616717 + ... + 348616752.

Almost surely, 2^12550202442 is an apocalyptic number.

12550202442 is an abundant number, since it is smaller than the sum of its proper divisors (14641902888).

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

12550202442 is a wasteful number, since it uses less digits than its factorization.

12550202442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697233477 (or 697233474 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

Adding to 12550202442 its reverse (24420205521), we get a palindrome (36970407963).

The spelling of 12550202442 in words is "twelve billion, five hundred fifty million, two hundred two thousand, four hundred forty-two".