121100214200203 has 16 divisors (see below), whose sum is σ = 138498537070080. Its totient is φ = 103726467156096.

The previous prime is 121100214200177. The next prime is 121100214200219. The reversal of 121100214200203 is 302002412001121.

It is a cyclic number.

It is not a de Polignac number, because 121100214200203 - 2²¹ = 121100212103051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121100214209203) 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, 822735468 + ... + 822882646.

It is an arithmetic number, because the mean of its divisors is an integer number (8656158566880).

Almost surely, 2^{121100214200203} is an apocalyptic number.

121100214200203 is a deficient number, since it is larger than the sum of its proper divisors (17398322869877).

121100214200203 is a wasteful number, since it uses less digits than its factorization.

121100214200203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229866.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 121100214200203 its reverse (302002412001121), we get a palindrome (423102626201324).

The spelling of 121100214200203 in words is "one hundred twenty-one trillion, one hundred billion, two hundred fourteen million, two hundred thousand, two hundred three".