1020221101019 has 2 divisors, whose sum is σ = 1020221101020. Its totient is φ = 1020221101018.

The previous prime is 1020221101001. The next prime is 1020221101111. The reversal of 1020221101019 is 9101011220201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020221101019 - 2⁸ = 1020221100763 is a prime.

It is a super-2 number, since 2×1020221101019² (a number of 25 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 (1020221101819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510110550509 + 510110550510.

It is an arithmetic number, because the mean of its divisors is an integer number (510110550510).

Almost surely, 2^{1020221101019} is an apocalyptic number.

1020221101019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020221101019 is an equidigital number, since it uses as much as digits as its factorization.

1020221101019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 1020221101019 in words is "one trillion, twenty billion, two hundred twenty-one million, one hundred one thousand, nineteen".