10120400022 has 32 divisors (see below), whose sum is σ = 20407749120. Its totient is φ = 3345673760.

The previous prime is 10120399997. The next prime is 10120400029. The reversal of 10120400022 is 22000402101.

It is a junction number, because it is equal to n+sod(n) for n = 10120399980 and 10120400007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120400029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1830979 + ... + 1836497.

It is an arithmetic number, because the mean of its divisors is an integer number (637742160).

Almost surely, 2^10120400022 is an apocalyptic number.

10120400022 is an abundant number, since it is smaller than the sum of its proper divisors (10287349098).

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

10120400022 is a wasteful number, since it uses less digits than its factorization.

10120400022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7988.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 10120400022 its reverse (22000402101), we get a palindrome (32120802123).

The spelling of 10120400022 in words is "ten billion, one hundred twenty million, four hundred thousand, twenty-two".