1021120020119 has 2 divisors, whose sum is σ = 1021120020120. Its totient is φ = 1021120020118.

The previous prime is 1021120020091. The next prime is 1021120020139. The reversal of 1021120020119 is 9110200211201.

It is an a-pointer prime, because the next prime (1021120020139) can be obtained adding 1021120020119 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-1021120020119 is a prime.

It is a super-4 number, since 4×1021120020119⁴ (a number of 49 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 1021120020119.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021120020139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510560010059 + 510560010060.

It is an arithmetic number, because the mean of its divisors is an integer number (510560010060).

Almost surely, 2^{1021120020119} is an apocalyptic number.

1021120020119 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021120020119 is an equidigital number, since it uses as much as digits as its factorization.

1021120020119 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 1021120020119 in words is "one trillion, twenty-one billion, one hundred twenty million, twenty thousand, one hundred nineteen".