121688522 has 8 divisors (see below), whose sum is σ = 183227616. Its totient is φ = 60612652.

The previous prime is 121688491. The next prime is 121688531. The reversal of 121688522 is 225886121.

It is a happy number.

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

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, 115148 + ... + 116199.

It is an arithmetic number, because the mean of its divisors is an integer number (22903452).

Almost surely, 2^121688522 is an apocalyptic number.

121688522 is a deficient number, since it is larger than the sum of its proper divisors (61539094).

121688522 is a wasteful number, since it uses less digits than its factorization.

121688522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231612.

The product of its digits is 15360, while the sum is 35.

The square root of 121688522 is about 11031.2520594899. The cubic root of 121688522 is about 495.5451220058.

The spelling of 121688522 in words is "one hundred twenty-one million, six hundred eighty-eight thousand, five hundred twenty-two".