22213332124421 has 2 divisors, whose sum is σ = 22213332124422. Its totient is φ = 22213332124420.

The previous prime is 22213332124393. The next prime is 22213332124433. The reversal of 22213332124421 is 12442123331222.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21976125136900 + 237206987521 = 4687870^2 + 487039^2 .

It is a cyclic number.

It is not a de Polignac number, because 22213332124421 - 2²² = 22213327930117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22213332154421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11106666062210 + 11106666062211.

It is an arithmetic number, because the mean of its divisors is an integer number (11106666062211).

Almost surely, 2^{22213332124421} is an apocalyptic number.

It is an amenable number.

22213332124421 is a deficient number, since it is larger than the sum of its proper divisors (1).

22213332124421 is an equidigital number, since it uses as much as digits as its factorization.

22213332124421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 32.

Adding to 22213332124421 its reverse (12442123331222), we get a palindrome (34655455455643).

The spelling of 22213332124421 in words is "twenty-two trillion, two hundred thirteen billion, three hundred thirty-two million, one hundred twenty-four thousand, four hundred twenty-one".