22100121111100 has 36 divisors (see below), whose sum is σ = 47957485212000. Its totient is φ = 8840007448960.

The previous prime is 22100121111097. The next prime is 22100121111119. The reversal of 22100121111100 is 111112100122.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30490701 + ... + 31207099.

It is an arithmetic number, because the mean of its divisors is an integer number (1332152367000).

Almost surely, 2^{22100121111100} is an apocalyptic number.

22100121111100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22100121111100 is an abundant number, since it is smaller than the sum of its proper divisors (25857364100900).

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

22100121111100 is a wasteful number, since it uses less digits than its factorization.

22100121111100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024902 (or 1024895 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 22100121111100 its reverse (111112100122), we get a palindrome (22211233211222).

The spelling of 22100121111100 in words is "twenty-two trillion, one hundred billion, one hundred twenty-one million, one hundred eleven thousand, one hundred".