121755722 has 8 divisors (see below), whose sum is σ = 199236672. Its totient is φ = 55343500.

The previous prime is 121755719. The next prime is 121755727. The reversal of 121755722 is 227557121.

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

It is not an unprimeable number, because it can be changed into a prime (121755727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2767154 + ... + 2767197.

It is an arithmetic number, because the mean of its divisors is an integer number (24904584).

Almost surely, 2^121755722 is an apocalyptic number.

121755722 is a deficient number, since it is larger than the sum of its proper divisors (77480950).

121755722 is a wasteful number, since it uses less digits than its factorization.

121755722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5534364.

The product of its digits is 9800, while the sum is 32.

The square root of 121755722 is about 11034.2975308807. The cubic root of 121755722 is about 495.6363234427.

The spelling of 121755722 in words is "one hundred twenty-one million, seven hundred fifty-five thousand, seven hundred twenty-two".