10122002020 has 24 divisors (see below), whose sum is σ = 22891297464. Its totient is φ = 3737354496.

The previous prime is 10122002017. The next prime is 10122002027. The reversal of 10122002020 is 2020022101.

It can be written as a sum of positive squares in 4 ways, for example, as 66324736 + 10055677284 = 8144^2 + 100278^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 10122001988 and 10122002006.

It is not an unprimeable number, because it can be changed into a prime (10122002027) 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, 19465129 + ... + 19465648.

It is an arithmetic number, because the mean of its divisors is an integer number (953804061).

Almost surely, 2^10122002020 is an apocalyptic number.

10122002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10122002020 is an abundant number, since it is smaller than the sum of its proper divisors (12769295444).

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

10122002020 is a wasteful number, since it uses less digits than its factorization.

10122002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38930799 (or 38930797 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 10122002020 its reverse (2020022101), we get a palindrome (12142024121).

The spelling of 10122002020 in words is "ten billion, one hundred twenty-two million, two thousand, twenty".