121232122211 has 2 divisors, whose sum is σ = 121232122212. Its totient is φ = 121232122210.

The previous prime is 121232122201. The next prime is 121232122229. The reversal of 121232122211 is 112221232121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121232122211 is a prime.

It is not a weakly prime, because it can be changed into another prime (121232122201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60616061105 + 60616061106.

It is an arithmetic number, because the mean of its divisors is an integer number (60616061106).

Almost surely, 2^121232122211 is an apocalyptic number.

121232122211 is a deficient number, since it is larger than the sum of its proper divisors (1).

121232122211 is an equidigital number, since it uses as much as digits as its factorization.

121232122211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192, while the sum is 20.

Adding to 121232122211 its reverse (112221232121), we get a palindrome (233453354332).

The spelling of 121232122211 in words is "one hundred twenty-one billion, two hundred thirty-two million, one hundred twenty-two thousand, two hundred eleven".