19970222933 has 4 divisors (see below), whose sum is σ = 20658851340. Its totient is φ = 19281594528.

The previous prime is 19970222893. The next prime is 19970222947. The reversal of 19970222933 is 33922207991.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15693324529 + 4276898404 = 125273^2 + 65398^2 .

It is a cyclic number.

It is not a de Polignac number, because 19970222933 - 2³⁴ = 2790353749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19970222333) 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 in 3 ways as a sum of consecutive naturals, for example, 344314160 + ... + 344314217.

It is an arithmetic number, because the mean of its divisors is an integer number (5164712835).

Almost surely, 2^19970222933 is an apocalyptic number.

It is an amenable number.

19970222933 is a deficient number, since it is larger than the sum of its proper divisors (688628407).

19970222933 is an equidigital number, since it uses as much as digits as its factorization.

19970222933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688628406.

The product of its (nonzero) digits is 367416, while the sum is 47.

The spelling of 19970222933 in words is "nineteen billion, nine hundred seventy million, two hundred twenty-two thousand, nine hundred thirty-three".