2221122111629 has 2 divisors, whose sum is σ = 2221122111630. Its totient is φ = 2221122111628.

The previous prime is 2221122111587. The next prime is 2221122111653. The reversal of 2221122111629 is 9261112211222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2165945041225 + 55177070404 = 1471715^2 + 234898^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221122111629 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2221122111595 and 2221122111604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221122111029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110561055814 + 1110561055815.

It is an arithmetic number, because the mean of its divisors is an integer number (1110561055815).

Almost surely, 2^{2221122111629} is an apocalyptic number.

It is an amenable number.

2221122111629 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221122111629 is an equidigital number, since it uses as much as digits as its factorization.

2221122111629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 32.

The spelling of 2221122111629 in words is "two trillion, two hundred twenty-one billion, one hundred twenty-two million, one hundred eleven thousand, six hundred twenty-nine".