22111201222000 has 160 divisors (see below), whose sum is σ = 58329704160000. Its totient is φ = 8039833632000.

The previous prime is 22111201221973. The next prime is 22111201222027. The reversal of 22111201222000 is 22210211122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22111201221973) and next prime (22111201222027).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 380548951 + ... + 380607049.

It is an arithmetic number, because the mean of its divisors is an integer number (364560651000).

Almost surely, 2^{22111201222000} is an apocalyptic number.

22111201222000 is a gapful number since it is divisible by the number (20) 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 22111201222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29164852080000).

22111201222000 is an abundant number, since it is smaller than the sum of its proper divisors (36218502938000).

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

22111201222000 is a wasteful number, since it uses less digits than its factorization.

22111201222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75432 (or 75416 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22111201222000 its reverse (22210211122), we get a palindrome (22133411433122).

The spelling of 22111201222000 in words is "twenty-two trillion, one hundred eleven billion, two hundred one million, two hundred twenty-two thousand".