121220112202202 has 32 divisors (see below), whose sum is σ = 195988305097872. Its totient is φ = 55898834448384.

The previous prime is 121220112202141. The next prime is 121220112202229. The reversal of 121220112202202 is 202202211022121.

It can be written as a sum of positive squares in 8 ways, for example, as 22476123328201 + 98743988874001 = 4740899^2 + 9937001^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 673156808 + ... + 673336860.

Almost surely, 2^{121220112202202} is an apocalyptic number.

121220112202202 is a deficient number, since it is larger than the sum of its proper divisors (74768192895670).

121220112202202 is a wasteful number, since it uses less digits than its factorization.

121220112202202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202562.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 121220112202202 its reverse (202202211022121), we get a palindrome (323422323224323).

The spelling of 121220112202202 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred twelve million, two hundred two thousand, two hundred two".