121012210221211 has 8 divisors (see below), whose sum is σ = 123063974231040. Its totient is φ = 118960469864808.

The previous prime is 121012210221137. The next prime is 121012210221239. The reversal of 121012210221211 is 112122012210121.

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 a de Polignac number, because none of the positive numbers 2^k-121012210221211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121012210221271) 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, 4561470 + ... + 16212076.

It is an arithmetic number, because the mean of its divisors is an integer number (15382996778880).

Almost surely, 2^{121012210221211} is an apocalyptic number.

121012210221211 is a deficient number, since it is larger than the sum of its proper divisors (2051764009829).

121012210221211 is a wasteful number, since it uses less digits than its factorization.

121012210221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11826713.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 121012210221211 its reverse (112122012210121), we get a palindrome (233134222431332).

The spelling of 121012210221211 in words is "one hundred twenty-one trillion, twelve billion, two hundred ten million, two hundred twenty-one thousand, two hundred eleven".