22025226061640 has 32 divisors (see below), whose sum is σ = 49601933540280. Its totient is φ = 8802059331072.

The previous prime is 22025226061603. The next prime is 22025226061651. The reversal of 22025226061640 is 4616062252022.

It can be written as a sum of positive squares in 4 ways, for example, as 17547067522084 + 4478158539556 = 4188922^2 + 2116166^2 .

It is a super-2 number, since 2×22025226061640² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22025226061594 and 22025226061603.

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, 250927247 + ... + 251015006.

Almost surely, 2^{22025226061640} is an apocalyptic number.

22025226061640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22025226061640 is an abundant number, since it is smaller than the sum of its proper divisors (27576707478640).

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

22025226061640 is a wasteful number, since it uses less digits than its factorization.

22025226061640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501943361 (or 501943357 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 38.

The spelling of 22025226061640 in words is "twenty-two trillion, twenty-five billion, two hundred twenty-six million, sixty-one thousand, six hundred forty".