121569122 has 16 divisors (see below), whose sum is σ = 191661120. Its totient is φ = 57720432.

The previous prime is 121569101. The next prime is 121569139. The reversal of 121569122 is 221965121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3113 + ... + 15900.

It is an arithmetic number, because the mean of its divisors is an integer number (11978820).

Almost surely, 2^121569122 is an apocalyptic number.

121569122 is a deficient number, since it is larger than the sum of its proper divisors (70091998).

121569122 is a wasteful number, since it uses less digits than its factorization.

121569122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19177.

The product of its digits is 2160, while the sum is 29.

The square root of 121569122 is about 11025.8388343019. The cubic root of 121569122 is about 495.3829937323.

The spelling of 121569122 in words is "one hundred twenty-one million, five hundred sixty-nine thousand, one hundred twenty-two".