121202200203 has 16 divisors (see below), whose sum is σ = 184694340096. Its totient is φ = 69256422720.

The previous prime is 121202200157. The next prime is 121202200237. The reversal of 121202200203 is 302002202121.

It is a happy number.

It is not a de Polignac number, because 121202200203 - 2²⁴ = 121185422987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121202204203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1003423 + ... + 1117703.

It is an arithmetic number, because the mean of its divisors is an integer number (11543396256).

Almost surely, 2^121202200203 is an apocalyptic number.

121202200203 is a deficient number, since it is larger than the sum of its proper divisors (63492139893).

121202200203 is a wasteful number, since it uses less digits than its factorization.

121202200203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164794.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 121202200203 its reverse (302002202121), we get a palindrome (423204402324).

The spelling of 121202200203 in words is "one hundred twenty-one billion, two hundred two million, two hundred thousand, two hundred three".