10122020010 has 40 divisors (see below), whose sum is σ = 27216989316. Its totient is φ = 2699205120.

The previous prime is 10122019993. The next prime is 10122020039. The reversal of 10122020010 is 1002022101.

It can be written as a sum of positive squares in 2 ways, for example, as 9974616129 + 147403881 = 99873^2 + 12141^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10122019974 and 10122020001.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6247351 + ... + 6248970.

Almost surely, 2^10122020010 is an apocalyptic number.

10122020010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10122020010 is an abundant number, since it is smaller than the sum of its proper divisors (17094969306).

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

10122020010 is a wasteful number, since it uses less digits than its factorization.

10122020010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12496340 (or 12496331 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 10122020010 its reverse (1002022101), we get a palindrome (11124042111).

The spelling of 10122020010 in words is "ten billion, one hundred twenty-two million, twenty thousand, ten".