22309999992 has 128 divisors (see below), whose sum is σ = 71823283200. Its totient is φ = 6284476800.

The previous prime is 22309999979. The next prime is 22309999993. The reversal of 22309999992 is 29999990322.

It is a super-3 number, since 3×22309999992³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22309999993) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3442 + ... + 211262.

It is an arithmetic number, because the mean of its divisors is an integer number (561119400).

Almost surely, 2^22309999992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22309999992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35911641600).

22309999992 is an abundant number, since it is smaller than the sum of its proper divisors (49513283208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22309999992 is a wasteful number, since it uses less digits than its factorization.

22309999992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207914 (or 207904 counting only the distinct ones).

The product of its (nonzero) digits is 12754584, while the sum is 63.

The spelling of 22309999992 in words is "twenty-two billion, three hundred nine million, nine hundred ninety-nine thousand, nine hundred ninety-two".