222212111212829 has 2 divisors, whose sum is σ = 222212111212830. Its totient is φ = 222212111212828.

The previous prime is 222212111212769. The next prime is 222212111212909. The reversal of 222212111212829 is 928212111212222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115059904653604 + 107152206559225 = 10726598^2 + 10351435^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222212111212829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222212111212792 and 222212111212801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222212111232829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111106055606414 + 111106055606415.

It is an arithmetic number, because the mean of its divisors is an integer number (111106055606415).

Almost surely, 2^{222212111212829} is an apocalyptic number.

It is an amenable number.

222212111212829 is a deficient number, since it is larger than the sum of its proper divisors (1).

222212111212829 is an equidigital number, since it uses as much as digits as its factorization.

222212111212829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18432, while the sum is 38.

The spelling of 222212111212829 in words is "two hundred twenty-two trillion, two hundred twelve billion, one hundred eleven million, two hundred twelve thousand, eight hundred twenty-nine".