20422014243520 has 56 divisors (see below), whose sum is σ = 49012834281984. Its totient is φ = 8104484376576.

The previous prime is 20422014243493. The next prime is 20422014243523. The reversal of 20422014243520 is 2534241022402.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20422014243523) 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, 251214457 + ... + 251295736.

Almost surely, 2^{20422014243520} is an apocalyptic number.

20422014243520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20422014243520 is an abundant number, since it is smaller than the sum of its proper divisors (28590820038464).

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

20422014243520 is a wasteful number, since it uses less digits than its factorization.

20422014243520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502510337 (or 502510327 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 20422014243520 its reverse (2534241022402), we get a palindrome (22956255265922).

The spelling of 20422014243520 in words is "twenty trillion, four hundred twenty-two billion, fourteen million, two hundred forty-three thousand, five hundred twenty".