121222102 has 4 divisors (see below), whose sum is σ = 181833156. Its totient is φ = 60611050.

The previous prime is 121222099. The next prime is 121222133. The reversal of 121222102 is 201222121.

It is a happy number.

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

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, 30305524 + ... + 30305527.

It is an arithmetic number, because the mean of its divisors is an integer number (45458289).

Almost surely, 2^121222102 is an apocalyptic number.

121222102 is a deficient number, since it is larger than the sum of its proper divisors (60611054).

121222102 is an equidigital number, since it uses as much as digits as its factorization.

121222102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60611053.

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

The square root of 121222102 is about 11010.0909169725. The cubic root of 121222102 is about 494.9111863241.

Adding to 121222102 its reverse (201222121), we get a palindrome (322444223).

The spelling of 121222102 in words is "one hundred twenty-one million, two hundred twenty-two thousand, one hundred two".