22012004140 has 48 divisors (see below), whose sum is σ = 52837247232. Its totient is φ = 7545767616.

The previous prime is 22012004123. The next prime is 22012004153. The reversal of 22012004140 is 4140021022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1662627 + ... + 1675813.

It is an arithmetic number, because the mean of its divisors is an integer number (1100775984).

Almost surely, 2^22012004140 is an apocalyptic number.

22012004140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22012004140 is an abundant number, since it is smaller than the sum of its proper divisors (30825243092).

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

22012004140 is a wasteful number, since it uses less digits than its factorization.

22012004140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25126 (or 25124 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22012004140 its reverse (4140021022), we get a palindrome (26152025162).

The spelling of 22012004140 in words is "twenty-two billion, twelve million, four thousand, one hundred forty".