22211221202029 has 2 divisors, whose sum is σ = 22211221202030. Its totient is φ = 22211221202028.

The previous prime is 22211221202011. The next prime is 22211221202039. The reversal of 22211221202029 is 92020212211222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21928943637225 + 282277564804 = 4682835^2 + 531298^2 .

It is a cyclic number.

It is not a de Polignac number, because 22211221202029 - 2⁵ = 22211221201997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22211221201988 and 22211221202006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22211221202039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11105610601014 + 11105610601015.

It is an arithmetic number, because the mean of its divisors is an integer number (11105610601015).

Almost surely, 2^{22211221202029} is an apocalyptic number.

It is an amenable number.

22211221202029 is a deficient number, since it is larger than the sum of its proper divisors (1).

22211221202029 is an equidigital number, since it uses as much as digits as its factorization.

22211221202029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

The spelling of 22211221202029 in words is "twenty-two trillion, two hundred eleven billion, two hundred twenty-one million, two hundred two thousand, twenty-nine".