121001122220211 has 32 divisors (see below), whose sum is σ = 180582337376000. Its totient is φ = 80072982039744.

The previous prime is 121001122220189. The next prime is 121001122220227. The reversal of 121001122220211 is 112022221100121.

121001122220211 is a `hidden beast` number, since 1 + 210 + 0 + 1 + 1 + 22 + 220 + 211 = 666.

It is not a de Polignac number, because 121001122220211 - 2¹⁴ = 121001122203827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121001122240211) 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, 18517176 + ... + 24184458.

It is an arithmetic number, because the mean of its divisors is an integer number (5643198043000).

Almost surely, 2^{121001122220211} is an apocalyptic number.

121001122220211 is a deficient number, since it is larger than the sum of its proper divisors (59581215155789).

121001122220211 is a wasteful number, since it uses less digits than its factorization.

121001122220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5673120 (or 5673114 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 121001122220211 its reverse (112022221100121), we get a palindrome (233023343320332).

The spelling of 121001122220211 in words is "one hundred twenty-one trillion, one billion, one hundred twenty-two million, two hundred twenty thousand, two hundred eleven".