12542202244422 has 24 divisors (see below), whose sum is σ = 27635360879880. Its totient is φ = 4109874181440.

The previous prime is 12542202244393. The next prime is 12542202244423. The reversal of 12542202244422 is 22444220224521.

12542202244422 is a `hidden beast` number, since 1 + 2 + 5 + 4 + 2 + 2 + 0 + 224 + 4 + 422 = 666.

It is a super-2 number, since 2×12542202244422² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12542202244423) 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, 5904990579 + ... + 5904992702.

It is an arithmetic number, because the mean of its divisors is an integer number (1151473369995).

Almost surely, 2^{12542202244422} is an apocalyptic number.

12542202244422 is an abundant number, since it is smaller than the sum of its proper divisors (15093158635458).

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

12542202244422 is a wasteful number, since it uses less digits than its factorization.

12542202244422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11809983348 (or 11809983345 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 36.

Adding to 12542202244422 its reverse (22444220224521), we get a palindrome (34986422468943).

The spelling of 12542202244422 in words is "twelve trillion, five hundred forty-two billion, two hundred two million, two hundred forty-four thousand, four hundred twenty-two".