22245542022402 has 12 divisors (see below), whose sum is σ = 48198674381910. Its totient is φ = 7415180674128.

The previous prime is 22245542022391. The next prime is 22245542022449. The reversal of 22245542022402 is 20422024554222.

22245542022402 is a `hidden beast` number, since 2 + 2 + 2 + 4 + 5 + 5 + 420 + 224 + 0 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15092222686641 + 7153319335761 = 3884871^2 + 2674569^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 617931722827 + ... + 617931722862.

Almost surely, 2^{22245542022402} is an apocalyptic number.

22245542022402 is an abundant number, since it is smaller than the sum of its proper divisors (25953132359508).

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

22245542022402 is a wasteful number, since it uses less digits than its factorization.

22245542022402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235863445697 (or 1235863445694 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 36.

Adding to 22245542022402 its reverse (20422024554222), we get a palindrome (42667566576624).

The spelling of 22245542022402 in words is "twenty-two trillion, two hundred forty-five billion, five hundred forty-two million, twenty-two thousand, four hundred two".