22312061653240 has 32 divisors (see below), whose sum is σ = 50563305198000. Its totient is φ = 8860617287424.

The previous prime is 22312061653237. The next prime is 22312061653241. The reversal of 22312061653240 is 4235616021322.

It is a super-3 number, since 3×22312061653240³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22312061653240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22312061653241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2006474805 + ... + 2006485924.

Almost surely, 2^{22312061653240} is an apocalyptic number.

22312061653240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22312061653240 is an abundant number, since it is smaller than the sum of its proper divisors (28251243544760).

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

22312061653240 is a wasteful number, since it uses less digits than its factorization.

22312061653240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4012960879 (or 4012960875 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

Adding to 22312061653240 its reverse (4235616021322), we get a palindrome (26547677674562).

The spelling of 22312061653240 in words is "twenty-two trillion, three hundred twelve billion, sixty-one million, six hundred fifty-three thousand, two hundred forty".