22111101001200 has 60 divisors (see below), whose sum is σ = 70829226877688. Its totient is φ = 5896293600000.

The previous prime is 22111101001193. The next prime is 22111101001217. The reversal of 22111101001200 is 210010111122.

It is a tau number, because it is divible by the number of its divisors (60).

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 11 ways as a sum of consecutive naturals, for example, 9212957551 + ... + 9212959950.

Almost surely, 2^{22111101001200} is an apocalyptic number.

22111101001200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22111101001200 is an abundant number, since it is smaller than the sum of its proper divisors (48718125876488).

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

22111101001200 is a wasteful number, since it uses less digits than its factorization.

22111101001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18425917522 (or 18425917511 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 22111101001200 its reverse (210010111122), we get a palindrome (22321111112322).

The spelling of 22111101001200 in words is "twenty-two trillion, one hundred eleven billion, one hundred one million, one thousand, two hundred".