222122311949 has 2 divisors, whose sum is σ = 222122311950. Its totient is φ = 222122311948.

The previous prime is 222122311937. The next prime is 222122311951. The reversal of 222122311949 is 949113221222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221918250724 + 204061225 = 471082^2 + 14285^2 .

It is a cyclic number.

It is not a de Polignac number, because 222122311949 - 2⁸ = 222122311693 is a prime.

Together with 222122311951, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222122311919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111061155974 + 111061155975.

It is an arithmetic number, because the mean of its divisors is an integer number (111061155975).

Almost surely, 2^222122311949 is an apocalyptic number.

It is an amenable number.

222122311949 is a deficient number, since it is larger than the sum of its proper divisors (1).

222122311949 is an equidigital number, since it uses as much as digits as its factorization.

222122311949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 38.

The spelling of 222122311949 in words is "two hundred twenty-two billion, one hundred twenty-two million, three hundred eleven thousand, nine hundred forty-nine".