22334232403421 has 2 divisors, whose sum is σ = 22334232403422. Its totient is φ = 22334232403420.

The previous prime is 22334232403403. The next prime is 22334232403451. The reversal of 22334232403421 is 12430423243322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22128923731321 + 205308672100 = 4704139^2 + 453110^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22334232403421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22334232403451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11167116201710 + 11167116201711.

It is an arithmetic number, because the mean of its divisors is an integer number (11167116201711).

Almost surely, 2^{22334232403421} is an apocalyptic number.

It is an amenable number.

22334232403421 is a deficient number, since it is larger than the sum of its proper divisors (1).

22334232403421 is an equidigital number, since it uses as much as digits as its factorization.

22334232403421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 35.

Adding to 22334232403421 its reverse (12430423243322), we get a palindrome (34764655646743).

The spelling of 22334232403421 in words is "twenty-two trillion, three hundred thirty-four billion, two hundred thirty-two million, four hundred three thousand, four hundred twenty-one".