22111121102022 has 128 divisors (see below), whose sum is σ = 49958294400000. Its totient is φ = 7247410765056.

The previous prime is 22111121102011. The next prime is 22111121102101. The reversal of 22111121102022 is 22020112111122.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22111121101986 and 22111121102004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6524377504 + ... + 6524380892.

It is an arithmetic number, because the mean of its divisors is an integer number (390299175000).

Almost surely, 2^{22111121102022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22111121102022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24979147200000).

22111121102022 is an abundant number, since it is smaller than the sum of its proper divisors (27847173297978).

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

22111121102022 is a wasteful number, since it uses less digits than its factorization.

22111121102022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6155 (or 6149 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22111121102022 its reverse (22020112111122), we get a palindrome (44131233213144).

The spelling of 22111121102022 in words is "twenty-two trillion, one hundred eleven billion, one hundred twenty-one million, one hundred two thousand, twenty-two".