122233431421 has 2 divisors, whose sum is σ = 122233431422. Its totient is φ = 122233431420.

The previous prime is 122233431277. The next prime is 122233431431. The reversal of 122233431421 is 124134332221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70710787225 + 51522644196 = 265915^2 + 226986^2 .

It is a cyclic number.

It is not a de Polignac number, because 122233431421 - 2⁹ = 122233430909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122233431421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122233431431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61116715710 + 61116715711.

It is an arithmetic number, because the mean of its divisors is an integer number (61116715711).

Almost surely, 2^122233431421 is an apocalyptic number.

It is an amenable number.

122233431421 is a deficient number, since it is larger than the sum of its proper divisors (1).

122233431421 is an equidigital number, since it uses as much as digits as its factorization.

122233431421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 28.

Adding to 122233431421 its reverse (124134332221), we get a palindrome (246367763642).

The spelling of 122233431421 in words is "one hundred twenty-two billion, two hundred thirty-three million, four hundred thirty-one thousand, four hundred twenty-one".