121201113211 has 8 divisors (see below), whose sum is σ = 122865410304. Its totient is φ = 119546193000.

The previous prime is 121201113203. The next prime is 121201113227. The reversal of 121201113211 is 112311102121.

It is a happy number.

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 121201113211 - 2³ = 121201113203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121201113311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2318191 + ... + 2369896.

It is an arithmetic number, because the mean of its divisors is an integer number (15358176288).

Almost surely, 2^121201113211 is an apocalyptic number.

121201113211 is a deficient number, since it is larger than the sum of its proper divisors (1664297093).

121201113211 is a wasteful number, since it uses less digits than its factorization.

121201113211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4688441.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 121201113211 its reverse (112311102121), we get a palindrome (233512215332).

The spelling of 121201113211 in words is "one hundred twenty-one billion, two hundred one million, one hundred thirteen thousand, two hundred eleven".