1022001221023 has 2 divisors, whose sum is σ = 1022001221024. Its totient is φ = 1022001221022.

The previous prime is 1022001220967. The next prime is 1022001221041. The reversal of 1022001221023 is 3201221002201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1022001221023 - 2¹³ = 1022001212831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1022001220988 and 1022001221006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022001281023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511000610511 + 511000610512.

It is an arithmetic number, because the mean of its divisors is an integer number (511000610512).

Almost surely, 2^{1022001221023} is an apocalyptic number.

1022001221023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022001221023 is an equidigital number, since it uses as much as digits as its factorization.

1022001221023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1022001221023 its reverse (3201221002201), we get a palindrome (4223222223224).

The spelling of 1022001221023 in words is "one trillion, twenty-two billion, one million, two hundred twenty-one thousand, twenty-three".