19422603021 has 8 divisors (see below), whose sum is σ = 25899086880. Its totient is φ = 12947260592.

The previous prime is 19422603017. The next prime is 19422603041. The reversal of 19422603021 is 12030622491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19422603021 - 2² = 19422603017 is a prime.

It is a super-2 number, since 2×19422603021² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19422603021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19422603041) 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 7 ways as a sum of consecutive naturals, for example, 244830 + ... + 314303.

It is an arithmetic number, because the mean of its divisors is an integer number (3237385860).

Almost surely, 2^19422603021 is an apocalyptic number.

It is an amenable number.

19422603021 is a deficient number, since it is larger than the sum of its proper divisors (6476483859).

19422603021 is a wasteful number, since it uses less digits than its factorization.

19422603021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570715.

The product of its (nonzero) digits is 5184, while the sum is 30.

The spelling of 19422603021 in words is "nineteen billion, four hundred twenty-two million, six hundred three thousand, twenty-one".