1021220022019 has 2 divisors, whose sum is σ = 1021220022020. Its totient is φ = 1021220022018.

The previous prime is 1021220021947. The next prime is 1021220022041. The reversal of 1021220022019 is 9102200221201.

It is an a-pointer prime, because the next prime (1021220022041) can be obtained adding 1021220022019 to its sum of digits (22).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021220022019 is a prime.

It is a super-2 number, since 2×1021220022019² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1021220022049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510610011009 + 510610011010.

It is an arithmetic number, because the mean of its divisors is an integer number (510610011010).

Almost surely, 2^{1021220022019} is an apocalyptic number.

1021220022019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021220022019 is an equidigital number, since it uses as much as digits as its factorization.

1021220022019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 1021220022019 in words is "one trillion, twenty-one billion, two hundred twenty million, twenty-two thousand, nineteen".