22021222212229 has 2 divisors, whose sum is σ = 22021222212230. Its totient is φ = 22021222212228.

The previous prime is 22021222212113. The next prime is 22021222212281. The reversal of 22021222212229 is 92221222212022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12284513275329 + 9736708936900 = 3504927^2 + 3120370^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22021222212229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22021222212229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22021222219229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010611106114 + 11010611106115.

It is an arithmetic number, because the mean of its divisors is an integer number (11010611106115).

Almost surely, 2^{22021222212229} is an apocalyptic number.

It is an amenable number.

22021222212229 is a deficient number, since it is larger than the sum of its proper divisors (1).

22021222212229 is an equidigital number, since it uses as much as digits as its factorization.

22021222212229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 31.

The spelling of 22021222212229 in words is "twenty-two trillion, twenty-one billion, two hundred twenty-two million, two hundred twelve thousand, two hundred twenty-nine".