121122131121211 has 16 divisors (see below), whose sum is σ = 132651013586400. Its totient is φ = 109679826323200.

The previous prime is 121122131121197. The next prime is 121122131121221. The reversal of 121122131121211 is 112121131221121.

It is a cyclic number.

It is not a de Polignac number, because 121122131121211 - 2²⁹ = 121121594250299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121122131121221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1595805 + ... + 15645793.

It is an arithmetic number, because the mean of its divisors is an integer number (8290688349150).

Almost surely, 2^{121122131121211} is an apocalyptic number.

121122131121211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121122131121211 is a deficient number, since it is larger than the sum of its proper divisors (11528882465189).

121122131121211 is a wasteful number, since it uses less digits than its factorization.

121122131121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14053070.

The product of its digits is 96, while the sum is 22.

Adding to 121122131121211 its reverse (112121131221121), we get a palindrome (233243262342332).

The spelling of 121122131121211 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, one hundred thirty-one million, one hundred twenty-one thousand, two hundred eleven".