22551140212 has 12 divisors (see below), whose sum is σ = 40531103620. Its totient is φ = 10970824896.

The previous prime is 22551140207. The next prime is 22551140239. The reversal of 22551140212 is 21204115522.

It can be written as a sum of positive squares in 2 ways, for example, as 20806908516 + 1744231696 = 144246^2 + 41764^2 .

It is a super-2 number, since 2×22551140212² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76186137 + ... + 76186432.

Almost surely, 2^22551140212 is an apocalyptic number.

It is an amenable number.

22551140212 is a deficient number, since it is larger than the sum of its proper divisors (17979963408).

22551140212 is a wasteful number, since it uses less digits than its factorization.

22551140212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152372610 (or 152372608 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 22551140212 its reverse (21204115522), we get a palindrome (43755255734).

The spelling of 22551140212 in words is "twenty-two billion, five hundred fifty-one million, one hundred forty thousand, two hundred twelve".