1002022321019 has 4 divisors (see below), whose sum is σ = 1003041673296. Its totient is φ = 1001002968744.

The previous prime is 1002022320883. The next prime is 1002022321057. The reversal of 1002022321019 is 9101232202001.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002022321019 is a prime.

It is a super-2 number, since 2×1002022321019² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002022320985 and 1002022321003.

It is not an unprimeable number, because it can be changed into a prime (1002022321219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509674664 + ... + 509676629.

It is an arithmetic number, because the mean of its divisors is an integer number (250760418324).

Almost surely, 2^{1002022321019} is an apocalyptic number.

1002022321019 is a deficient number, since it is larger than the sum of its proper divisors (1019352277).

1002022321019 is an equidigital number, since it uses as much as digits as its factorization.

1002022321019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019352276.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 1002022321019 in words is "one trillion, two billion, twenty-two million, three hundred twenty-one thousand, nineteen".