121643122 has 8 divisors (see below), whose sum is σ = 183796956. Its totient is φ = 60377472.

The previous prime is 121643099. The next prime is 121643131. The reversal of 121643122 is 221346121.

It can be written as a sum of positive squares in 2 ways, for example, as 119924401 + 1718721 = 10951^2 + 1311^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 121643093 and 121643102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221703 + ... + 222250.

Almost surely, 2^121643122 is an apocalyptic number.

121643122 is a deficient number, since it is larger than the sum of its proper divisors (62153834).

121643122 is a wasteful number, since it uses less digits than its factorization.

121643122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444092.

The product of its digits is 576, while the sum is 22.

The square root of 121643122 is about 11029.1940775380. The cubic root of 121643122 is about 495.4834877431.

Adding to 121643122 its reverse (221346121), we get a palindrome (342989243).

The spelling of 121643122 in words is "one hundred twenty-one million, six hundred forty-three thousand, one hundred twenty-two".