2111201222022 has 48 divisors (see below), whose sum is σ = 4582079855808. Its totient is φ = 702532459440.

The previous prime is 2111201222003. The next prime is 2111201222023. The reversal of 2111201222022 is 2202221021112.

It is a happy number.

It is a super-2 number, since 2×2111201222022² (a number of 25 digits) contains 22 as substring.

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 = 2111201221986 and 2111201222004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111201222023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124099497 + ... + 124116507.

It is an arithmetic number, because the mean of its divisors is an integer number (95459996996).

Almost surely, 2^{2111201222022} is an apocalyptic number.

2111201222022 is an abundant number, since it is smaller than the sum of its proper divisors (2470878633786).

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

2111201222022 is a wasteful number, since it uses less digits than its factorization.

2111201222022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28385 (or 28382 counting only the distinct ones).

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

Adding to 2111201222022 its reverse (2202221021112), we get a palindrome (4313422243134).

The spelling of 2111201222022 in words is "two trillion, one hundred eleven billion, two hundred one million, two hundred twenty-two thousand, twenty-two".