20221466971 has 2 divisors, whose sum is σ = 20221466972. Its totient is φ = 20221466970.

The previous prime is 20221466963. The next prime is 20221467031. The reversal of 20221466971 is 17966412202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20221466971 - 2³ = 20221466963 is a prime.

It is not a weakly prime, because it can be changed into another prime (20221466911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110733485 + 10110733486.

It is an arithmetic number, because the mean of its divisors is an integer number (10110733486).

Almost surely, 2^20221466971 is an apocalyptic number.

20221466971 is a deficient number, since it is larger than the sum of its proper divisors (1).

20221466971 is an equidigital number, since it uses as much as digits as its factorization.

20221466971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 20221466971 in words is "twenty billion, two hundred twenty-one million, four hundred sixty-six thousand, nine hundred seventy-one".