121001222100211 has 4 divisors (see below), whose sum is σ = 121189404405832. Its totient is φ = 120813039794592.

The previous prime is 121001222100191. The next prime is 121001222100217. The reversal of 121001222100211 is 112001222100121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121001222100211 - 2⁹ = 121001222099699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121001222100217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94091151846 + ... + 94091153131.

It is an arithmetic number, because the mean of its divisors is an integer number (30297351101458).

Almost surely, 2^{121001222100211} is an apocalyptic number.

121001222100211 is a deficient number, since it is larger than the sum of its proper divisors (188182305621).

121001222100211 is an equidigital number, since it uses as much as digits as its factorization.

121001222100211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188182305620.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121001222100211 its reverse (112001222100121), we get a palindrome (233002444200332).

The spelling of 121001222100211 in words is "one hundred twenty-one trillion, one billion, two hundred twenty-two million, one hundred thousand, two hundred eleven".