222122311451 has 2 divisors, whose sum is σ = 222122311452. Its totient is φ = 222122311450.

The previous prime is 222122311447. The next prime is 222122311513. The reversal of 222122311451 is 154113221222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222122311451 - 2² = 222122311447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222122311451.

It is not a weakly prime, because it can be changed into another prime (222122311951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111061155725 + 111061155726.

It is an arithmetic number, because the mean of its divisors is an integer number (111061155726).

Almost surely, 2^222122311451 is an apocalyptic number.

222122311451 is a deficient number, since it is larger than the sum of its proper divisors (1).

222122311451 is an equidigital number, since it uses as much as digits as its factorization.

222122311451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 26.

Adding to 222122311451 its reverse (154113221222), we get a palindrome (376235532673).

The spelling of 222122311451 in words is "two hundred twenty-two billion, one hundred twenty-two million, three hundred eleven thousand, four hundred fifty-one".