121110012211 has 32 divisors (see below), whose sum is σ = 130144734720. Its totient is φ = 112373568000.

The previous prime is 121110012203. The next prime is 121110012253. The reversal of 121110012211 is 112210011121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 121110012211 - 2³ = 121110012203 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121110012191 and 121110012200.

It is not an unprimeable number, because it can be changed into a prime (121110012811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73982085 + ... + 73983721.

It is an arithmetic number, because the mean of its divisors is an integer number (4067022960).

Almost surely, 2^121110012211 is an apocalyptic number.

121110012211 is a deficient number, since it is larger than the sum of its proper divisors (9034722509).

121110012211 is a wasteful number, since it uses less digits than its factorization.

121110012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2155.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121110012211 its reverse (112210011121), we get a palindrome (233320023332).

The spelling of 121110012211 in words is "one hundred twenty-one billion, one hundred ten million, twelve thousand, two hundred eleven".