1210021211023 has 2 divisors, whose sum is σ = 1210021211024. Its totient is φ = 1210021211022.

The previous prime is 1210021210991. The next prime is 1210021211039. The reversal of 1210021211023 is 3201121200121.

It is an a-pointer prime, because the next prime (1210021211039) can be obtained adding 1210021211023 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1210021211023 - 2⁵ = 1210021210991 is a prime.

It is a super-2 number, since 2×1210021211023² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1210021210988 and 1210021211006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1210021211093) 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, 605010605511 + 605010605512.

It is an arithmetic number, because the mean of its divisors is an integer number (605010605512).

Almost surely, 2^{1210021211023} is an apocalyptic number.

1210021211023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210021211023 is an equidigital number, since it uses as much as digits as its factorization.

1210021211023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1210021211023 its reverse (3201121200121), we get a palindrome (4411142411144).

The spelling of 1210021211023 in words is "one trillion, two hundred ten billion, twenty-one million, two hundred eleven thousand, twenty-three".