121210222 has 24 divisors (see below), whose sum is σ = 214409376. Its totient is φ = 51232608.

The previous prime is 121210213. The next prime is 121210231. The reversal of 121210222 is 222012121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121210213) and next prime (121210231).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1318 + ... + 15625.

It is an arithmetic number, because the mean of its divisors is an integer number (8933724).

Almost surely, 2^121210222 is an apocalyptic number.

121210222 is a deficient number, since it is larger than the sum of its proper divisors (93199154).

121210222 is a wasteful number, since it uses less digits than its factorization.

121210222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17032 (or 17025 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 121210222 is about 11009.5513986720. The cubic root of 121210222 is about 494.8950183788.

Adding to 121210222 its reverse (222012121), we get a palindrome (343222343).

The spelling of 121210222 in words is "one hundred twenty-one million, two hundred ten thousand, two hundred twenty-two".