20422120000 has 70 divisors (see below), whose sum is σ = 50640319598. Its totient is φ = 8168832000.

The previous prime is 20422119973. The next prime is 20422120027. The reversal of 20422120000 is 2122402.

It is an interprime number because it is at equal distance from previous prime (20422119973) and next prime (20422120027).

It can be written as a sum of positive squares in 5 ways, for example, as 14732133376 + 5689986624 = 121376^2 + 75432^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 215277 + ... + 295276.

Almost surely, 2^20422120000 is an apocalyptic number.

20422120000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20422120000 is an abundant number, since it is smaller than the sum of its proper divisors (30218199598).

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

20422120000 is an frugal number, since it uses more digits than its factorization.

20422120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510585 (or 510560 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 20422120000 its reverse (2122402), we get a palindrome (20424242402).

The spelling of 20422120000 in words is "twenty billion, four hundred twenty-two million, one hundred twenty thousand".