20122454664460 has 12 divisors (see below), whose sum is σ = 42257154795408. Its totient is φ = 8048981865776.

The previous prime is 20122454664401. The next prime is 20122454664467. The reversal of 20122454664460 is 6446645422102.

It is a super-2 number, since 2×20122454664460² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20122454664460.

It is not an unprimeable number, because it can be changed into a prime (20122454664467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503061366592 + ... + 503061366631.

It is an arithmetic number, because the mean of its divisors is an integer number (3521429566284).

Almost surely, 2^{20122454664460} is an apocalyptic number.

20122454664460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20122454664460 is an abundant number, since it is smaller than the sum of its proper divisors (22134700130948).

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

20122454664460 is a wasteful number, since it uses less digits than its factorization.

20122454664460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006122733232 (or 1006122733230 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 46.

The spelling of 20122454664460 in words is "twenty trillion, one hundred twenty-two billion, four hundred fifty-four million, six hundred sixty-four thousand, four hundred sixty".