22262226462440 has 16 divisors (see below), whose sum is σ = 50090009540580. Its totient is φ = 8904890584960.

The previous prime is 22262226462383. The next prime is 22262226462521. The reversal of 22262226462440 is 4426462226222.

It can be written as a sum of positive squares in 2 ways, for example, as 21117168096964 + 1145058365476 = 4595342^2 + 1070074^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22262226462391 and 22262226462400.

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, 278277830741 + ... + 278277830820.

Almost surely, 2^{22262226462440} is an apocalyptic number.

22262226462440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22262226462440 is an abundant number, since it is smaller than the sum of its proper divisors (27827783078140).

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

22262226462440 is a wasteful number, since it uses less digits than its factorization.

22262226462440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556555661572 (or 556555661568 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 44.

Adding to 22262226462440 its reverse (4426462226222), we get a palindrome (26688688688662).

The spelling of 22262226462440 in words is "twenty-two trillion, two hundred sixty-two billion, two hundred twenty-six million, four hundred sixty-two thousand, four hundred forty".