22221991277 has 8 divisors (see below), whose sum is σ = 22397990400. Its totient is φ = 22046684464.

The previous prime is 22221991229. The next prime is 22221991301. The reversal of 22221991277 is 77219912222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22221991277 - 2¹⁴ = 22221974893 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 (22221991217) 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 in 7 ways as a sum of consecutive naturals, for example, 108533 + ... + 237114.

It is an arithmetic number, because the mean of its divisors is an integer number (2799748800).

Almost surely, 2^22221991277 is an apocalyptic number.

It is an amenable number.

22221991277 is a deficient number, since it is larger than the sum of its proper divisors (175999123).

22221991277 is a wasteful number, since it uses less digits than its factorization.

22221991277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346155.

The product of its digits is 127008, while the sum is 44.

The spelling of 22221991277 in words is "twenty-two billion, two hundred twenty-one million, nine hundred ninety-one thousand, two hundred seventy-seven".