100211121200 has 30 divisors (see below), whose sum is σ = 240757219644. Its totient is φ = 40084448320.

The previous prime is 100211121173. The next prime is 100211121209. The reversal of 100211121200 is 2121112001.

It is a super-2 number, since 2×100211121200² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100211121209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 125263502 + ... + 125264301.

Almost surely, 2^100211121200 is an apocalyptic number.

100211121200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100211121200 is an abundant number, since it is smaller than the sum of its proper divisors (140546098444).

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

100211121200 is a wasteful number, since it uses less digits than its factorization.

100211121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250527821 (or 250527810 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 100211121200 its reverse (2121112001), we get a palindrome (102332233201).

The spelling of 100211121200 in words is "one hundred billion, two hundred eleven million, one hundred twenty-one thousand, two hundred".