2202112021122 has 160 divisors (see below), whose sum is σ = 5438416515840. Its totient is φ = 661883270400.

The previous prime is 2202112021117. The next prime is 2202112021147. The reversal of 2202112021122 is 2211202112022.

It is a happy number.

2202112021122 is a `hidden beast` number, since 220 + 211 + 2 + 0 + 211 + 22 = 666.

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 = 2202112021095 and 2202112021104.

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, 15486247 + ... + 15627797.

It is an arithmetic number, because the mean of its divisors is an integer number (33990103224).

Almost surely, 2^{2202112021122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2202112021122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2719208257920).

2202112021122 is an abundant number, since it is smaller than the sum of its proper divisors (3236304494718).

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

2202112021122 is a wasteful number, since it uses less digits than its factorization.

2202112021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141750 (or 141741 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2202112021122 its reverse (2211202112022), we get a palindrome (4413314133144).

The spelling of 2202112021122 in words is "two trillion, two hundred two billion, one hundred twelve million, twenty-one thousand, one hundred twenty-two".