2112222233221 has 8 divisors (see below), whose sum is σ = 2142066739104. Its totient is φ = 2082564840720.

The previous prime is 2112222233189. The next prime is 2112222233273. The reversal of 2112222233221 is 1223322222112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2112222233221 - 2⁵ = 2112222233189 is a prime.

It is a super-2 number, since 2×2112222233221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112222233291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46755610 + ... + 46800763.

It is an arithmetic number, because the mean of its divisors is an integer number (267758342388).

Almost surely, 2^{2112222233221} is an apocalyptic number.

It is an amenable number.

2112222233221 is a deficient number, since it is larger than the sum of its proper divisors (29844505883).

2112222233221 is a wasteful number, since it uses less digits than its factorization.

2112222233221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93556691.

The product of its digits is 2304, while the sum is 25.

Adding to 2112222233221 its reverse (1223322222112), we get a palindrome (3335544455333).

The spelling of 2112222233221 in words is "two trillion, one hundred twelve billion, two hundred twenty-two million, two hundred thirty-three thousand, two hundred twenty-one".