10111121200 has 60 divisors (see below), whose sum is σ = 25075611328. Its totient is φ = 3913977600.

The previous prime is 10111121191. The next prime is 10111121201. The reversal of 10111121200 is 212111101.

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

It is not an unprimeable number, because it can be changed into a prime (10111121201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 395307 + ... + 420106.

Almost surely, 2^10111121200 is an apocalyptic number.

10111121200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10111121200 is an abundant number, since it is smaller than the sum of its proper divisors (14964490128).

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

10111121200 is a wasteful number, since it uses less digits than its factorization.

10111121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815462 (or 815451 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10111121200 its reverse (212111101), we get a palindrome (10323232301).

It can be divided in two parts, 1011 and 1121200, that added together give a palindrome (1122211).

The spelling of 10111121200 in words is "ten billion, one hundred eleven million, one hundred twenty-one thousand, two hundred".