121223202201 has 12 divisors (see below), whose sum is σ = 176174417328. Its totient is φ = 80319666744.

The previous prime is 121223202197. The next prime is 121223202263. The reversal of 121223202201 is 102202322121.

121223202201 is a `hidden beast` number, since 1 + 2 + 122 + 320 + 220 + 1 = 666.

It is not a de Polignac number, because 121223202201 - 2² = 121223202197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121223202281) 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, 41315235 + ... + 41318168.

It is an arithmetic number, because the mean of its divisors is an integer number (14681201444).

Almost surely, 2^121223202201 is an apocalyptic number.

It is an amenable number.

121223202201 is a deficient number, since it is larger than the sum of its proper divisors (54951215127).

121223202201 is a wasteful number, since it uses less digits than its factorization.

121223202201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82633572 (or 82633569 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 121223202201 its reverse (102202322121), we get a palindrome (223425524322).

It can be divided in two parts, 121 and 223202201, that added together give a palindrome (223202322).

The spelling of 121223202201 in words is "one hundred twenty-one billion, two hundred twenty-three million, two hundred two thousand, two hundred one".