121211002001211 has 8 divisors (see below), whose sum is σ = 161729371022160. Its totient is φ = 80749983823872.

The previous prime is 121211002001161. The next prime is 121211002001239. The reversal of 121211002001211 is 112100200112121.

It is a happy number.

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

It is not a de Polignac number, because 121211002001211 - 2²⁵ = 121210968446779 is a prime.

It is a super-2 number, since 2×121211002001211² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121211002001911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14337705970 + ... + 14337714423.

It is an arithmetic number, because the mean of its divisors is an integer number (20216171377770).

Almost surely, 2^{121211002001211} is an apocalyptic number.

121211002001211 is a deficient number, since it is larger than the sum of its proper divisors (40518369020949).

121211002001211 is a wasteful number, since it uses less digits than its factorization.

121211002001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28675421805.

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

Adding to 121211002001211 its reverse (112100200112121), we get a palindrome (233311202113332).

The spelling of 121211002001211 in words is "one hundred twenty-one trillion, two hundred eleven billion, two million, one thousand, two hundred eleven".