121257116 has 6 divisors (see below), whose sum is σ = 212199960. Its totient is φ = 60628556.

The previous prime is 121257083. The next prime is 121257121. The reversal of 121257116 is 611752121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15157136 + ... + 15157143.

It is an arithmetic number, because the mean of its divisors is an integer number (35366660).

Almost surely, 2^121257116 is an apocalyptic number.

It is an amenable number.

121257116 is a deficient number, since it is larger than the sum of its proper divisors (90942844).

121257116 is a wasteful number, since it uses less digits than its factorization.

121257116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30314283 (or 30314281 counting only the distinct ones).

The product of its digits is 840, while the sum is 26.

The square root of 121257116 is about 11011.6808889470. The cubic root of 121257116 is about 494.9588320692.

The spelling of 121257116 in words is "one hundred twenty-one million, two hundred fifty-seven thousand, one hundred sixteen".