200021122019 has 2 divisors, whose sum is σ = 200021122020. Its totient is φ = 200021122018.

The previous prime is 200021121997. The next prime is 200021122039. The reversal of 200021122019 is 910221120002.

It is a happy number.

It is an a-pointer prime, because the next prime (200021122039) can be obtained adding 200021122019 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200021122019 is a prime.

It is a super-2 number, since 2×200021122019² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (200021122039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100010561009 + 100010561010.

It is an arithmetic number, because the mean of its divisors is an integer number (100010561010).

Almost surely, 2^200021122019 is an apocalyptic number.

200021122019 is a deficient number, since it is larger than the sum of its proper divisors (1).

200021122019 is an equidigital number, since it uses as much as digits as its factorization.

200021122019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 200021122019 in words is "two hundred billion, twenty-one million, one hundred twenty-two thousand, nineteen".