121006646 has 8 divisors (see below), whose sum is σ = 192187080. Its totient is φ = 56944288.

The previous prime is 121006607. The next prime is 121006667. The reversal of 121006646 is 646600121.

It is a happy number.

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

It is a congruent number.

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, 1779476 + ... + 1779543.

It is an arithmetic number, because the mean of its divisors is an integer number (24023385).

Almost surely, 2^121006646 is an apocalyptic number.

121006646 is a deficient number, since it is larger than the sum of its proper divisors (71180434).

121006646 is a wasteful number, since it uses less digits than its factorization.

121006646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3559038.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 121006646 is about 11000.3020867611. The cubic root of 121006646 is about 494.6177997230.

Adding to 121006646 its reverse (646600121), we get a palindrome (767606767).

The spelling of 121006646 in words is "one hundred twenty-one million, six thousand, six hundred forty-six".