121201101221023 has 2 divisors, whose sum is σ = 121201101221024. Its totient is φ = 121201101221022.

The previous prime is 121201101220973. The next prime is 121201101221029. The reversal of 121201101221023 is 320122101102121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121201101221023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121201101221029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60600550610511 + 60600550610512.

It is an arithmetic number, because the mean of its divisors is an integer number (60600550610512).

Almost surely, 2^{121201101221023} is an apocalyptic number.

121201101221023 is a deficient number, since it is larger than the sum of its proper divisors (1).

121201101221023 is an equidigital number, since it uses as much as digits as its factorization.

121201101221023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 121201101221023 its reverse (320122101102121), we get a palindrome (441323202323144).

The spelling of 121201101221023 in words is "one hundred twenty-one trillion, two hundred one billion, one hundred one million, two hundred twenty-one thousand, twenty-three".