222561029 has 2 divisors, whose sum is σ = 222561030. Its totient is φ = 222561028.

The previous prime is 222561019. The next prime is 222561043. The reversal of 222561029 is 920165222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 166281025 + 56280004 = 12895^2 + 7502^2 .

It is a cyclic number.

It is not a de Polignac number, because 222561029 - 2⁸ = 222560773 is a prime.

It is equal to p_12255842 and since 222561029 and 12255842 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 222560992 and 222561010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222561019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111280514 + 111280515.

It is an arithmetic number, because the mean of its divisors is an integer number (111280515).

Almost surely, 2^222561029 is an apocalyptic number.

It is an amenable number.

222561029 is a deficient number, since it is larger than the sum of its proper divisors (1).

222561029 is an equidigital number, since it uses as much as digits as its factorization.

222561029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 222561029 is about 14918.4794466460. The cubic root of 222561029 is about 606.0145343557.

The spelling of 222561029 in words is "two hundred twenty-two million, five hundred sixty-one thousand, twenty-nine".