21022202029 has 2 divisors, whose sum is σ = 21022202030. Its totient is φ = 21022202028.

The previous prime is 21022202021. The next prime is 21022202041. The reversal of 21022202029 is 92020222012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20679878025 + 342324004 = 143805^2 + 18502^2 .

It is a cyclic number.

It is not a de Polignac number, because 21022202029 - 2³ = 21022202021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21022202021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10511101014 + 10511101015.

It is an arithmetic number, because the mean of its divisors is an integer number (10511101015).

Almost surely, 2^21022202029 is an apocalyptic number.

It is an amenable number.

21022202029 is a deficient number, since it is larger than the sum of its proper divisors (1).

21022202029 is an equidigital number, since it uses as much as digits as its factorization.

21022202029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The spelling of 21022202029 in words is "twenty-one billion, twenty-two million, two hundred two thousand, twenty-nine".