22144224012 has 24 divisors (see below), whose sum is σ = 51722022912. Its totient is φ = 7373955600.

The previous prime is 22144223971. The next prime is 22144224031. The reversal of 22144224012 is 21042244122.

It is a happy number.

It is a super-2 number, since 2×22144224012² (a number of 21 digits) contains 22 as substring.

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, 919164 + ... + 942947.

It is an arithmetic number, because the mean of its divisors is an integer number (2155084288).

Almost surely, 2^22144224012 is an apocalyptic number.

It is an amenable number.

22144224012 is an abundant number, since it is smaller than the sum of its proper divisors (29577798900).

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

22144224012 is a wasteful number, since it uses less digits than its factorization.

22144224012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1863109 (or 1863107 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 22144224012 its reverse (21042244122), we get a palindrome (43186468134).

The spelling of 22144224012 in words is "twenty-two billion, one hundred forty-four million, two hundred twenty-four thousand, twelve".