221022122029 has 2 divisors, whose sum is σ = 221022122030. Its totient is φ = 221022122028.

The previous prime is 221022122021. The next prime is 221022122033. The reversal of 221022122029 is 920221220122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219740625225 + 1281496804 = 468765^2 + 35798^2 .

It is a cyclic number.

It is not a de Polignac number, because 221022122029 - 2³ = 221022122021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221022121994 and 221022122012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221022122021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110511061014 + 110511061015.

It is an arithmetic number, because the mean of its divisors is an integer number (110511061015).

Almost surely, 2^221022122029 is an apocalyptic number.

It is an amenable number.

221022122029 is a deficient number, since it is larger than the sum of its proper divisors (1).

221022122029 is an equidigital number, since it uses as much as digits as its factorization.

221022122029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The spelling of 221022122029 in words is "two hundred twenty-one billion, twenty-two million, one hundred twenty-two thousand, twenty-nine".