2111233122221 has 8 divisors (see below), whose sum is σ = 2114099472000. Its totient is φ = 2108367724320.

The previous prime is 2111233122211. The next prime is 2111233122247. The reversal of 2111233122221 is 1222213321112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2111233122221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111233122211) 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, 4258505 + ... + 4728353.

It is an arithmetic number, because the mean of its divisors is an integer number (264262434000).

Almost surely, 2^{2111233122221} is an apocalyptic number.

It is an amenable number.

2111233122221 is a deficient number, since it is larger than the sum of its proper divisors (2866349779).

2111233122221 is an equidigital number, since it uses as much as digits as its factorization.

2111233122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475939.

The product of its digits is 576, while the sum is 23.

Adding to 2111233122221 its reverse (1222213321112), we get a palindrome (3333446443333).

The spelling of 2111233122221 in words is "two trillion, one hundred eleven billion, two hundred thirty-three million, one hundred twenty-two thousand, two hundred twenty-one".