1564142122242 has 48 divisors (see below), whose sum is σ = 3946191462720. Its totient is φ = 438465714336.

The previous prime is 1564142122237. The next prime is 1564142122307. The reversal of 1564142122242 is 2422212414651.

1564142122242 is a `hidden beast` number, since 1 + 5 + 6 + 4 + 1 + 421 + 2 + 224 + 2 = 666.

It is a super-2 number, since 2×1564142122242² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1564142122197 and 1564142122206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117104892 + ... + 117118247.

It is an arithmetic number, because the mean of its divisors is an integer number (82212322140).

Almost surely, 2^{1564142122242} is an apocalyptic number.

1564142122242 is an abundant number, since it is smaller than the sum of its proper divisors (2382049340478).

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

1564142122242 is a wasteful number, since it uses less digits than its factorization.

1564142122242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234223207 (or 234223204 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

Adding to 1564142122242 its reverse (2422212414651), we get a palindrome (3986354536893).

The spelling of 1564142122242 in words is "one trillion, five hundred sixty-four billion, one hundred forty-two million, one hundred twenty-two thousand, two hundred forty-two".