121255077 has 8 divisors (see below), whose sum is σ = 161744320. Its totient is φ = 80801280.

The previous prime is 121255073. The next prime is 121255091. The reversal of 121255077 is 770552121.

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

It is not a de Polignac number, because 121255077 - 2² = 121255073 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121255073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552 + ... + 15582.

It is an arithmetic number, because the mean of its divisors is an integer number (20218040).

Almost surely, 2^121255077 is an apocalyptic number.

It is an amenable number.

121255077 is a deficient number, since it is larger than the sum of its proper divisors (40489243).

121255077 is a wasteful number, since it uses less digits than its factorization.

121255077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17723.

The product of its (nonzero) digits is 4900, while the sum is 30.

The square root of 121255077 is about 11011.5883050539. The cubic root of 121255077 is about 494.9560577256.

The spelling of 121255077 in words is "one hundred twenty-one million, two hundred fifty-five thousand, seventy-seven".