121201022211 has 16 divisors (see below), whose sum is σ = 174704179200. Its totient is φ = 74479147488.

The previous prime is 121201022209. The next prime is 121201022231. The reversal of 121201022211 is 112220102121.

It is not a de Polignac number, because 121201022211 - 2¹ = 121201022209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121201022231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28732131 + ... + 28736348.

It is an arithmetic number, because the mean of its divisors is an integer number (10919011200).

Almost surely, 2^121201022211 is an apocalyptic number.

121201022211 is a deficient number, since it is larger than the sum of its proper divisors (53503156989).

121201022211 is a wasteful number, since it uses less digits than its factorization.

121201022211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57468538.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121201022211 its reverse (112220102121), we get a palindrome (233421124332).

The spelling of 121201022211 in words is "one hundred twenty-one billion, two hundred one million, twenty-two thousand, two hundred eleven".