21332222941 has 2 divisors, whose sum is σ = 21332222942. Its totient is φ = 21332222940.

The previous prime is 21332222927. The next prime is 21332223041. The reversal of 21332222941 is 14922223312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20002162041 + 1330060900 = 141429^2 + 36470^2 .

It is a cyclic number.

It is not a de Polignac number, because 21332222941 - 2⁵ = 21332222909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21332226941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10666111470 + 10666111471.

It is an arithmetic number, because the mean of its divisors is an integer number (10666111471).

Almost surely, 2^21332222941 is an apocalyptic number.

It is an amenable number.

21332222941 is a deficient number, since it is larger than the sum of its proper divisors (1).

21332222941 is an equidigital number, since it uses as much as digits as its factorization.

21332222941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 31.

The spelling of 21332222941 in words is "twenty-one billion, three hundred thirty-two million, two hundred twenty-two thousand, nine hundred forty-one".