1221222002023 has 2 divisors, whose sum is σ = 1221222002024. Its totient is φ = 1221222002022.

The previous prime is 1221222001949. The next prime is 1221222002027. The reversal of 1221222002023 is 3202002221221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1221222002023 - 2¹⁷ = 1221221870951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1221222002027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610611001011 + 610611001012.

It is an arithmetic number, because the mean of its divisors is an integer number (610611001012).

Almost surely, 2^{1221222002023} is an apocalyptic number.

1221222002023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1221222002023 is an equidigital number, since it uses as much as digits as its factorization.

1221222002023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 1221222002023 its reverse (3202002221221), we get a palindrome (4423224223244).

The spelling of 1221222002023 in words is "one trillion, two hundred twenty-one billion, two hundred twenty-two million, two thousand, twenty-three".