121321441402211 has 32 divisors (see below), whose sum is σ = 133613953152000. Its totient is φ = 109854234129024.

The previous prime is 121321441402123. The next prime is 121321441402247. The reversal of 121321441402211 is 112204144123121.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-121321441402211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121321441402111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 301017035 + ... + 301419803.

It is an arithmetic number, because the mean of its divisors is an integer number (4175436036000).

Almost surely, 2^{121321441402211} is an apocalyptic number.

121321441402211 is a deficient number, since it is larger than the sum of its proper divisors (12292511749789).

121321441402211 is an equidigital number, since it uses as much as digits as its factorization.

121321441402211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404160 (or 404114 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

Adding to 121321441402211 its reverse (112204144123121), we get a palindrome (233525585525332).

The spelling of 121321441402211 in words is "one hundred twenty-one trillion, three hundred twenty-one billion, four hundred forty-one million, four hundred two thousand, two hundred eleven".