121100430211 has 2 divisors, whose sum is σ = 121100430212. Its totient is φ = 121100430210.

The previous prime is 121100430197. The next prime is 121100430233. The reversal of 121100430211 is 112034001121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121100430211 - 2²⁷ = 120966212483 is a prime.

It is not a weakly prime, because it can be changed into another prime (121100430811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60550215105 + 60550215106.

It is an arithmetic number, because the mean of its divisors is an integer number (60550215106).

Almost surely, 2^121100430211 is an apocalyptic number.

121100430211 is a deficient number, since it is larger than the sum of its proper divisors (1).

121100430211 is an equidigital number, since it uses as much as digits as its factorization.

121100430211 is an evil number, because the sum of its binary digits is even.

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

Adding to 121100430211 its reverse (112034001121), we get a palindrome (233134431332).

The spelling of 121100430211 in words is "one hundred twenty-one billion, one hundred million, four hundred thirty thousand, two hundred eleven".