121120112211 has 32 divisors (see below), whose sum is σ = 196590965760. Its totient is φ = 64750135296.

The previous prime is 121120112203. The next prime is 121120112213. The reversal of 121120112211 is 112211021121.

It is a happy number.

It is not a de Polignac number, because 121120112211 - 2³ = 121120112203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121120112213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 956166 + ... + 1075403.

It is an arithmetic number, because the mean of its divisors is an integer number (6143467680).

Almost surely, 2^121120112211 is an apocalyptic number.

121120112211 is a deficient number, since it is larger than the sum of its proper divisors (75470853549).

121120112211 is a wasteful number, since it uses less digits than its factorization.

121120112211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2031763.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 121120112211 its reverse (112211021121), we get a palindrome (233331133332).

The spelling of 121120112211 in words is "one hundred twenty-one billion, one hundred twenty million, one hundred twelve thousand, two hundred eleven".