222313022221 has 2 divisors, whose sum is σ = 222313022222. Its totient is φ = 222313022220.

The previous prime is 222313022171. The next prime is 222313022249. The reversal of 222313022221 is 122220313222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219081099721 + 3231922500 = 468061^2 + 56850^2 .

It is a cyclic number.

It is not a de Polignac number, because 222313022221 - 2²¹ = 222310925069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222313022192 and 222313022201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222313022021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111156511110 + 111156511111.

It is an arithmetic number, because the mean of its divisors is an integer number (111156511111).

Almost surely, 2^222313022221 is an apocalyptic number.

It is an amenable number.

222313022221 is a deficient number, since it is larger than the sum of its proper divisors (1).

222313022221 is an equidigital number, since it uses as much as digits as its factorization.

222313022221 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 22.

Adding to 222313022221 its reverse (122220313222), we get a palindrome (344533335443).

The spelling of 222313022221 in words is "two hundred twenty-two billion, three hundred thirteen million, twenty-two thousand, two hundred twenty-one".