121100122012211 has 8 divisors (see below), whose sum is σ = 125163423982464. Its totient is φ = 117046622943360.

The previous prime is 121100122012193. The next prime is 121100122012361. The reversal of 121100122012211 is 112210221001121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121100122012211 - 2⁶ = 121100122012147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121100122012211.

It is not an unprimeable number, because it can be changed into a prime (121100122012811) 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 in 7 ways as a sum of consecutive naturals, for example, 2450700230 + ... + 2450749643.

It is an arithmetic number, because the mean of its divisors is an integer number (15645427997808).

Almost surely, 2^{121100122012211} is an apocalyptic number.

121100122012211 is a deficient number, since it is larger than the sum of its proper divisors (4063301970253).

121100122012211 is an equidigital number, since it uses as much as digits as its factorization.

121100122012211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4901450701.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121100122012211 its reverse (112210221001121), we get a palindrome (233310343013332).

The spelling of 121100122012211 in words is "one hundred twenty-one trillion, one hundred billion, one hundred twenty-two million, twelve thousand, two hundred eleven".