121222110121211 has 8 divisors (see below), whose sum is σ = 132263296200000. Its totient is φ = 110184423084040.

The previous prime is 121222110121187. The next prime is 121222110121349. The reversal of 121222110121211 is 112121011222121.

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-121222110121211 is a prime.

It is a super-2 number, since 2×121222110121211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121222110021211) 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, 874687961 + ... + 874826538.

It is an arithmetic number, because the mean of its divisors is an integer number (16532912025000).

Almost surely, 2^{121222110121211} is an apocalyptic number.

121222110121211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121222110121211 is a deficient number, since it is larger than the sum of its proper divisors (11041186078789).

121222110121211 is a wasteful number, since it uses less digits than its factorization.

121222110121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749520809.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 121222110121211 its reverse (112121011222121), we get a palindrome (233343121343332).

The spelling of 121222110121211 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, one hundred ten million, one hundred twenty-one thousand, two hundred eleven".