10012122020 has 12 divisors (see below), whose sum is σ = 21025456284. Its totient is φ = 4004848800.

The previous prime is 10012122011. The next prime is 10012122037. The reversal of 10012122020 is 2022121001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5222374756 + 4789747264 = 72266^2 + 69208^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10012121992 and 10012122010.

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, 250303031 + ... + 250303070.

It is an arithmetic number, because the mean of its divisors is an integer number (1752121357).

Almost surely, 2^10012122020 is an apocalyptic number.

10012122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10012122020 is an abundant number, since it is smaller than the sum of its proper divisors (11013334264).

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

10012122020 is a wasteful number, since it uses less digits than its factorization.

10012122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500606110 (or 500606108 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10012122020 its reverse (2022121001), we get a palindrome (12034243021).

The spelling of 10012122020 in words is "ten billion, twelve million, one hundred twenty-two thousand, twenty".