21922992001 has 2 divisors, whose sum is σ = 21922992002. Its totient is φ = 21922992000.

The previous prime is 21922991999. The next prime is 21922992023. The reversal of 21922992001 is 10029922912.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20753283600 + 1169708401 = 144060^2 + 34201^2 .

It is a cyclic number.

It is not a de Polignac number, because 21922992001 - 2¹ = 21922991999 is a prime.

Together with 21922991999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (21922992031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10961496000 + 10961496001.

It is an arithmetic number, because the mean of its divisors is an integer number (10961496001).

Almost surely, 2^21922992001 is an apocalyptic number.

It is an amenable number.

21922992001 is a deficient number, since it is larger than the sum of its proper divisors (1).

21922992001 is an equidigital number, since it uses as much as digits as its factorization.

21922992001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 37.

The spelling of 21922992001 in words is "twenty-one billion, nine hundred twenty-two million, nine hundred ninety-two thousand, one".