22222209999 has 8 divisors (see below), whose sum is σ = 32323214592. Its totient is φ = 13468006040.

The previous prime is 22222209979. The next prime is 22222210009. The reversal of 22222209999 is 99990222222.

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 22222209999 - 2⁵ = 22222209967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222209979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336700119 + ... + 336700184.

It is an arithmetic number, because the mean of its divisors is an integer number (4040401824).

Almost surely, 2^22222209999 is an apocalyptic number.

22222209999 is a deficient number, since it is larger than the sum of its proper divisors (10101004593).

22222209999 is a wasteful number, since it uses less digits than its factorization.

22222209999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673400317.

The product of its (nonzero) digits is 419904, while the sum is 48.

It can be divided in two parts, 22222 and 209999, that added together give a triangular number (232221 = T₆₈₁).

The spelling of 22222209999 in words is "twenty-two billion, two hundred twenty-two million, two hundred nine thousand, nine hundred ninety-nine".