22021563536340 has 48 divisors (see below), whose sum is σ = 61665109736832. Its totient is φ = 5871966292096.

The previous prime is 22021563536311. The next prime is 22021563536351. The reversal of 22021563536340 is 4363536512022.

It is a junction number, because it is equal to n+sod(n) for n = 22021563536292 and 22021563536301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13294104 + ... + 14858543.

It is an arithmetic number, because the mean of its divisors is an integer number (1284689786184).

Almost surely, 2^{22021563536340} is an apocalyptic number.

22021563536340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22021563536340 is an abundant number, since it is smaller than the sum of its proper divisors (39643546200492).

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

22021563536340 is a wasteful number, since it uses less digits than its factorization.

22021563536340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28165696 (or 28165694 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 42.

The spelling of 22021563536340 in words is "twenty-two trillion, twenty-one billion, five hundred sixty-three million, five hundred thirty-six thousand, three hundred forty".