222221100029 has 2 divisors, whose sum is σ = 222221100030. Its totient is φ = 222221100028.

The previous prime is 222221100001. The next prime is 222221100041. The reversal of 222221100029 is 920001122222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141468511129 + 80752588900 = 376123^2 + 284170^2 .

It is a cyclic number.

It is not a de Polignac number, because 222221100029 - 2¹⁶ = 222221034493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222221099977 and 222221100013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222221100329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111110550014 + 111110550015.

It is an arithmetic number, because the mean of its divisors is an integer number (111110550015).

Almost surely, 2^222221100029 is an apocalyptic number.

It is an amenable number.

222221100029 is a deficient number, since it is larger than the sum of its proper divisors (1).

222221100029 is an equidigital number, since it uses as much as digits as its factorization.

222221100029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 222221100029 in words is "two hundred twenty-two billion, two hundred twenty-one million, one hundred thousand, twenty-nine".