22150031552554 has 4 divisors (see below), whose sum is σ = 33225047328834. Its totient is φ = 11075015776276.

The previous prime is 22150031552501. The next prime is 22150031552557. The reversal of 22150031552554 is 45525513005122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 21745760665225 + 404270887329 = 4663235^2 + 635823^2 .

It is not an unprimeable number, because it can be changed into a prime (22150031552557) by changing a digit.

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 as a sum of consecutive naturals, namely, 5537507888137 + ... + 5537507888140.

Almost surely, 2^{22150031552554} is an apocalyptic number.

22150031552554 is a deficient number, since it is larger than the sum of its proper divisors (11075015776280).

22150031552554 is a wasteful number, since it uses less digits than its factorization.

22150031552554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11075015776279.

The product of its (nonzero) digits is 300000, while the sum is 40.

Adding to 22150031552554 its reverse (45525513005122), we get a palindrome (67675544557676).

The spelling of 22150031552554 in words is "twenty-two trillion, one hundred fifty billion, thirty-one million, five hundred fifty-two thousand, five hundred fifty-four".