22401312140 has 24 divisors (see below), whose sum is σ = 47208996240. Its totient is φ = 8928859968.

The previous prime is 22401312133. The next prime is 22401312179. The reversal of 22401312140 is 4121310422.

It is a super-2 number, since 2×22401312140² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1973255 + ... + 1984574.

It is an arithmetic number, because the mean of its divisors is an integer number (1967041510).

Almost surely, 2^22401312140 is an apocalyptic number.

22401312140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22401312140 is an abundant number, since it is smaller than the sum of its proper divisors (24807684100).

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

22401312140 is a wasteful number, since it uses less digits than its factorization.

22401312140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3958121 (or 3958119 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 22401312140 its reverse (4121310422), we get a palindrome (26522622562).

The spelling of 22401312140 in words is "twenty-two billion, four hundred one million, three hundred twelve thousand, one hundred forty".