1022021112043 has 2 divisors, whose sum is σ = 1022021112044. Its totient is φ = 1022021112042.

The previous prime is 1022021111953. The next prime is 1022021112097. The reversal of 1022021112043 is 3402111202201.

It is a strong prime.

It is an emirp because it is prime and its reverse (3402111202201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1022021112043 - 2²⁹ = 1021484241131 is a prime.

It is a super-2 number, since 2×1022021112043² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1022021112043.

It is not a weakly prime, because it can be changed into another prime (1022021182043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511010556021 + 511010556022.

It is an arithmetic number, because the mean of its divisors is an integer number (511010556022).

Almost surely, 2^{1022021112043} is an apocalyptic number.

1022021112043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022021112043 is an equidigital number, since it uses as much as digits as its factorization.

1022021112043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1022021112043 its reverse (3402111202201), we get a palindrome (4424132314244).

The spelling of 1022021112043 in words is "one trillion, twenty-two billion, twenty-one million, one hundred twelve thousand, forty-three".