121210021112203 has 2 divisors, whose sum is σ = 121210021112204. Its totient is φ = 121210021112202.

The previous prime is 121210021112197. The next prime is 121210021112221. The reversal of 121210021112203 is 302211120012121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121210021112203 - 2⁹ = 121210021111691 is a prime.

It is not a weakly prime, because it can be changed into another prime (121210021112003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60605010556101 + 60605010556102.

It is an arithmetic number, because the mean of its divisors is an integer number (60605010556102).

Almost surely, 2^{121210021112203} is an apocalyptic number.

121210021112203 is a deficient number, since it is larger than the sum of its proper divisors (1).

121210021112203 is an equidigital number, since it uses as much as digits as its factorization.

121210021112203 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 19.

Adding to 121210021112203 its reverse (302211120012121), we get a palindrome (423421141124324).

The spelling of 121210021112203 in words is "one hundred twenty-one trillion, two hundred ten billion, twenty-one million, one hundred twelve thousand, two hundred three".