121201202222 has 4 divisors (see below), whose sum is σ = 181801803336. Its totient is φ = 60600601110.

The previous prime is 121201202197. The next prime is 121201202249. The reversal of 121201202222 is 222202102121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 121201202222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30300300554 + ... + 30300300557.

It is an arithmetic number, because the mean of its divisors is an integer number (45450450834).

Almost surely, 2^121201202222 is an apocalyptic number.

121201202222 is a deficient number, since it is larger than the sum of its proper divisors (60600601114).

121201202222 is an equidigital number, since it uses as much as digits as its factorization.

121201202222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60600601113.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 121201202222 its reverse (222202102121), we get a palindrome (343403304343).

The spelling of 121201202222 in words is "one hundred twenty-one billion, two hundred one million, two hundred two thousand, two hundred twenty-two".