10120001022 has 24 divisors (see below), whose sum is σ = 21930081264. Its totient is φ = 3372808704.

The previous prime is 10120000987. The next prime is 10120001033. The reversal of 10120001022 is 22010002101.

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

It is a junction number, because it is equal to n+sod(n) for n = 10120000995 and 10120001013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85438 + ... + 165950.

It is an arithmetic number, because the mean of its divisors is an integer number (913753386).

Almost surely, 2^10120001022 is an apocalyptic number.

10120001022 is an abundant number, since it is smaller than the sum of its proper divisors (11810080242).

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

10120001022 is a wasteful number, since it uses less digits than its factorization.

10120001022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87504 (or 87501 counting only the distinct ones).

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

Adding to 10120001022 its reverse (22010002101), we get a palindrome (32130003123).

The spelling of 10120001022 in words is "ten billion, one hundred twenty million, one thousand, twenty-two".