10122112200 has 144 divisors (see below), whose sum is σ = 32252154480. Its totient is φ = 2626064640.

The previous prime is 10122112181. The next prime is 10122112201. The reversal of 10122112200 is 221122101.

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

It is not an unprimeable number, because it can be changed into a prime (10122112201) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 815239 + ... + 827561.

It is an arithmetic number, because the mean of its divisors is an integer number (223973295).

Almost surely, 2^10122112200 is an apocalyptic number.

10122112200 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 10122112200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16126077240).

10122112200 is an abundant number, since it is smaller than the sum of its proper divisors (22130042280).

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

10122112200 is a wasteful number, since it uses less digits than its factorization.

10122112200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12416 (or 12370 counting only the distinct ones).

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

Adding to 10122112200 its reverse (221122101), we get a palindrome (10343234301).

Subtracting from 10122112200 its reverse (221122101), we obtain a palindrome (9900990099).

The spelling of 10122112200 in words is "ten billion, one hundred twenty-two million, one hundred twelve thousand, two hundred".