10122122100 has 144 divisors (see below), whose sum is σ = 30334058496. Its totient is φ = 2604336000.

The previous prime is 10122122093. The next prime is 10122122117. The reversal of 10122122100 is 122122101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 996045 + ... + 1006155.

It is an arithmetic number, because the mean of its divisors is an integer number (210653184).

Almost surely, 2^10122122100 is an apocalyptic number.

10122122100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10122122100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15167029248).

10122122100 is an abundant number, since it is smaller than the sum of its proper divisors (20211936396).

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

10122122100 is a wasteful number, since it uses less digits than its factorization.

10122122100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10246 (or 10239 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10122122100 its reverse (122122101), we get a palindrome (10244244201).

Subtracting from 10122122100 its reverse (122122101), we obtain a palindrome (9999999999).

It can be divided in two parts, 101221 and 22100, that added together give a palindrome (123321).

The spelling of 10122122100 in words is "ten billion, one hundred twenty-two million, one hundred twenty-two thousand, one hundred".