121111220202202 has 8 divisors (see below), whose sum is σ = 183274501368276. Its totient is φ = 60019719746112.

The previous prime is 121111220202191. The next prime is 121111220202221. The reversal of 121111220202202 is 202202022111121.

It can be written as a sum of positive squares in 2 ways, for example, as 99942028404201 + 21169191798001 = 9997101^2 + 4600999^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 121111220202202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267945177213 + ... + 267945177664.

Almost surely, 2^{121111220202202} is an apocalyptic number.

121111220202202 is a deficient number, since it is larger than the sum of its proper divisors (62163281166074).

121111220202202 is a wasteful number, since it uses less digits than its factorization.

121111220202202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535890354992.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121111220202202 its reverse (202202022111121), we get a palindrome (323313242313323).

The spelling of 121111220202202 in words is "one hundred twenty-one trillion, one hundred eleven billion, two hundred twenty million, two hundred two thousand, two hundred two".