22212732557 has 4 divisors (see below), whose sum is σ = 22685343936. Its totient is φ = 21740121180.

The previous prime is 22212732541. The next prime is 22212732599. The reversal of 22212732557 is 75523721222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22212732557 - 2⁴ = 22212732541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22212732557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212762557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236305619 + ... + 236305712.

It is an arithmetic number, because the mean of its divisors is an integer number (5671335984).

Almost surely, 2^22212732557 is an apocalyptic number.

It is an amenable number.

22212732557 is a deficient number, since it is larger than the sum of its proper divisors (472611379).

22212732557 is an equidigital number, since it uses as much as digits as its factorization.

22212732557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472611378.

The product of its digits is 117600, while the sum is 38.

The spelling of 22212732557 in words is "twenty-two billion, two hundred twelve million, seven hundred thirty-two thousand, five hundred fifty-seven".