2111202221022 has 24 divisors (see below), whose sum is σ = 4773152848464. Its totient is φ = 673136939904.

The previous prime is 2111202221021. The next prime is 2111202221041. The reversal of 2111202221022 is 2201222021112.

It is a happy number.

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 = 2111202220986 and 2111202221004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111202221021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2549760723 + ... + 2549761550.

It is an arithmetic number, because the mean of its divisors is an integer number (198881368686).

Almost surely, 2^{2111202221022} is an apocalyptic number.

2111202221022 is an abundant number, since it is smaller than the sum of its proper divisors (2661950627442).

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

2111202221022 is a wasteful number, since it uses less digits than its factorization.

2111202221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5099522304 (or 5099522301 counting only the distinct ones).

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

Adding to 2111202221022 its reverse (2201222021112), we get a palindrome (4312424242134).

The spelling of 2111202221022 in words is "two trillion, one hundred eleven billion, two hundred two million, two hundred twenty-one thousand, twenty-two".