19030021022 has 4 divisors (see below), whose sum is σ = 28545031536. Its totient is φ = 9515010510.

The previous prime is 19030021019. The next prime is 19030021027. The reversal of 19030021022 is 22012003091.

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

It is a junction number, because it is equal to n+sod(n) for n = 19030020985 and 19030021003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19030021027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4757505254 + ... + 4757505257.

It is an arithmetic number, because the mean of its divisors is an integer number (7136257884).

Almost surely, 2^19030021022 is an apocalyptic number.

19030021022 is a deficient number, since it is larger than the sum of its proper divisors (9515010514).

19030021022 is an equidigital number, since it uses as much as digits as its factorization.

19030021022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9515010513.

The product of its (nonzero) digits is 216, while the sum is 20.

The spelling of 19030021022 in words is "nineteen billion, thirty million, twenty-one thousand, twenty-two".