121112222110201 has 12 divisors (see below), whose sum is σ = 140886349809780. Its totient is φ = 103809957592320.

The previous prime is 121112222110181. The next prime is 121112222110267. The reversal of 121112222110201 is 102011222211121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11454129516025 + 109658092594176 = 3384395^2 + 10471776^2 .

It is not a de Polignac number, because 121112222110201 - 2¹⁵ = 121112222077433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121112222110601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3904021 + ... + 16045741.

It is an arithmetic number, because the mean of its divisors is an integer number (11740529150815).

Almost surely, 2^{121112222110201} is an apocalyptic number.

It is an amenable number.

121112222110201 is a deficient number, since it is larger than the sum of its proper divisors (19774127699579).

121112222110201 is a wasteful number, since it uses less digits than its factorization.

121112222110201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12345304 (or 12345297 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 121112222110201 its reverse (102011222211121), we get a palindrome (223123444321322).

The spelling of 121112222110201 in words is "one hundred twenty-one trillion, one hundred twelve billion, two hundred twenty-two million, one hundred ten thousand, two hundred one".