22448701021 has 2 divisors, whose sum is σ = 22448701022. Its totient is φ = 22448701020.

The previous prime is 22448701007. The next prime is 22448701091. The reversal of 22448701021 is 12010784422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18146784100 + 4301916921 = 134710^2 + 65589^2 .

It is a cyclic number.

It is not a de Polignac number, because 22448701021 - 2⁷ = 22448700893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22448701091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11224350510 + 11224350511.

It is an arithmetic number, because the mean of its divisors is an integer number (11224350511).

Almost surely, 2^22448701021 is an apocalyptic number.

It is an amenable number.

22448701021 is a deficient number, since it is larger than the sum of its proper divisors (1).

22448701021 is an equidigital number, since it uses as much as digits as its factorization.

22448701021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7168, while the sum is 31.

The spelling of 22448701021 in words is "twenty-two billion, four hundred forty-eight million, seven hundred one thousand, twenty-one".