22100120002000 has 80 divisors (see below), whose sum is σ = 53460156402432. Its totient is φ = 8836397673600.

The previous prime is 22100120001943. The next prime is 22100120002039. The reversal of 22100120002000 is 20002100122.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2565757 + ... + 7126243.

Almost surely, 2^{22100120002000} is an apocalyptic number.

22100120002000 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 22100120002000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26730078201216).

22100120002000 is an abundant number, since it is smaller than the sum of its proper divisors (31360036400432).

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

22100120002000 is a wasteful number, since it uses less digits than its factorization.

22100120002000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4562933 (or 4562917 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 22100120002000 its reverse (20002100122), we get a palindrome (22120122102122).

The spelling of 22100120002000 in words is "twenty-two trillion, one hundred billion, one hundred twenty million, two thousand".