22044502001 has 2 divisors, whose sum is σ = 22044502002. Its totient is φ = 22044502000.

The previous prime is 22044501943. The next prime is 22044502003. The reversal of 22044502001 is 10020544022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17747568400 + 4296933601 = 133220^2 + 65551^2 .

It is a cyclic number.

It is not a de Polignac number, because 22044502001 - 2¹⁰ = 22044500977 is a prime.

Together with 22044502003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22044502003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11022251000 + 11022251001.

It is an arithmetic number, because the mean of its divisors is an integer number (11022251001).

Almost surely, 2^22044502001 is an apocalyptic number.

It is an amenable number.

22044502001 is a deficient number, since it is larger than the sum of its proper divisors (1).

22044502001 is an equidigital number, since it uses as much as digits as its factorization.

22044502001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 640, while the sum is 20.

The spelling of 22044502001 in words is "twenty-two billion, forty-four million, five hundred two thousand, one".