22111210110000 has 400 divisors, whose sum is σ = 77907573596160. Its totient is φ = 5357489280000.

The previous prime is 22111210109977. The next prime is 22111210110023. The reversal of 22111210110000 is 1101211122.

It is an interprime number because it is at equal distance from previous prime (22111210109977) and next prime (22111210110023).

It is a tau number, because it is divible by the number of its divisors (400).

It is a super-2 number, since 2×22111210110000² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 669553489 + ... + 669586511.

Almost surely, 2^{22111210110000} is an apocalyptic number.

22111210110000 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 22111210110000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38953786798080).

22111210110000 is an abundant number, since it is smaller than the sum of its proper divisors (55796363486160).

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

22111210110000 is a wasteful number, since it uses less digits than its factorization.

22111210110000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35094 (or 35073 counting only the distinct ones).

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

Adding to 22111210110000 its reverse (1101211122), we get a palindrome (22112311321122).

The spelling of 22111210110000 in words is "twenty-two trillion, one hundred eleven billion, two hundred ten million, one hundred ten thousand".