222021412313 has 2 divisors, whose sum is σ = 222021412314. Its totient is φ = 222021412312.

The previous prime is 222021412247. The next prime is 222021412331. The reversal of 222021412313 is 313214120222.

Together with next prime (222021412331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 215150328649 + 6871083664 = 463843^2 + 82892^2 .

It is a cyclic number.

It is not a de Polignac number, because 222021412313 - 2²⁰ = 222020363737 is a prime.

It is not a weakly prime, because it can be changed into another prime (222021412813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111010706156 + 111010706157.

It is an arithmetic number, because the mean of its divisors is an integer number (111010706157).

Almost surely, 2^222021412313 is an apocalyptic number.

It is an amenable number.

222021412313 is a deficient number, since it is larger than the sum of its proper divisors (1).

222021412313 is an equidigital number, since it uses as much as digits as its factorization.

222021412313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 222021412313 its reverse (313214120222), we get a palindrome (535235532535).

The spelling of 222021412313 in words is "two hundred twenty-two billion, twenty-one million, four hundred twelve thousand, three hundred thirteen".