222212111110109 has 2 divisors, whose sum is σ = 222212111110110. Its totient is φ = 222212111110108.

The previous prime is 222212111110097. The next prime is 222212111110117. The reversal of 222212111110109 is 901011111212222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 213714868620100 + 8497242490009 = 14618990^2 + 2915003^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222212111110109 is a prime.

It is a super-2 number, since 2×222212111110109² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222212111190109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111106055555054 + 111106055555055.

It is an arithmetic number, because the mean of its divisors is an integer number (111106055555055).

Almost surely, 2^{222212111110109} is an apocalyptic number.

It is an amenable number.

222212111110109 is a deficient number, since it is larger than the sum of its proper divisors (1).

222212111110109 is an equidigital number, since it uses as much as digits as its factorization.

222212111110109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 26.

The spelling of 222212111110109 in words is "two hundred twenty-two trillion, two hundred twelve billion, one hundred eleven million, one hundred ten thousand, one hundred nine".