22112033621 has 2 divisors, whose sum is σ = 22112033622. Its totient is φ = 22112033620.

The previous prime is 22112033609. The next prime is 22112033677. The reversal of 22112033621 is 12633021122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21583723396 + 528310225 = 146914^2 + 22985^2 .

It is a cyclic number.

It is not a de Polignac number, because 22112033621 - 2⁶ = 22112033557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22112003621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11056016810 + 11056016811.

It is an arithmetic number, because the mean of its divisors is an integer number (11056016811).

Almost surely, 2^22112033621 is an apocalyptic number.

It is an amenable number.

22112033621 is a deficient number, since it is larger than the sum of its proper divisors (1).

22112033621 is an equidigital number, since it uses as much as digits as its factorization.

22112033621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 22112033621 its reverse (12633021122), we get a palindrome (34745054743).

The spelling of 22112033621 in words is "twenty-two billion, one hundred twelve million, thirty-three thousand, six hundred twenty-one".