122223233021 has 2 divisors, whose sum is σ = 122223233022. Its totient is φ = 122223233020.

The previous prime is 122223232979. The next prime is 122223233071. The reversal of 122223233021 is 120332322221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102407040121 + 19816192900 = 320011^2 + 140770^2 .

It is an emirp because it is prime and its reverse (120332322221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122223233021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122223233071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61111616510 + 61111616511.

It is an arithmetic number, because the mean of its divisors is an integer number (61111616511).

Almost surely, 2^122223233021 is an apocalyptic number.

It is an amenable number.

122223233021 is a deficient number, since it is larger than the sum of its proper divisors (1).

122223233021 is an equidigital number, since it uses as much as digits as its factorization.

122223233021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 122223233021 its reverse (120332322221), we get a palindrome (242555555242).

The spelling of 122223233021 in words is "one hundred twenty-two billion, two hundred twenty-three million, two hundred thirty-three thousand, twenty-one".