22012322477 has 4 divisors (see below), whose sum is σ = 22969380000. Its totient is φ = 21055264956.

The previous prime is 22012322473. The next prime is 22012322503. The reversal of 22012322477 is 77422321022.

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 22012322477 - 2² = 22012322473 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012322473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 478528727 + ... + 478528772.

It is an arithmetic number, because the mean of its divisors is an integer number (5742345000).

Almost surely, 2^22012322477 is an apocalyptic number.

It is an amenable number.

22012322477 is a deficient number, since it is larger than the sum of its proper divisors (957057523).

22012322477 is an equidigital number, since it uses as much as digits as its factorization.

22012322477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957057522.

The product of its (nonzero) digits is 18816, while the sum is 32.

Adding to 22012322477 its reverse (77422321022), we get a palindrome (99434643499).

The spelling of 22012322477 in words is "twenty-two billion, twelve million, three hundred twenty-two thousand, four hundred seventy-seven".