121121966 has 16 divisors (see below), whose sum is σ = 211043040. Its totient is φ = 51058080.

The previous prime is 121121939. The next prime is 121121977. The reversal of 121121966 is 669121121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70061 + ... + 71768.

It is an arithmetic number, because the mean of its divisors is an integer number (13190190).

Almost surely, 2^121121966 is an apocalyptic number.

121121966 is a deficient number, since it is larger than the sum of its proper divisors (89921074).

121121966 is a wasteful number, since it uses less digits than its factorization.

121121966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141899.

The product of its digits is 1296, while the sum is 29.

The square root of 121121966 is about 11005.5425127524. The cubic root of 121121966 is about 494.7748743316.

The spelling of 121121966 in words is "one hundred twenty-one million, one hundred twenty-one thousand, nine hundred sixty-six".