121022755 has 16 divisors (see below), whose sum is σ = 166242240. Its totient is φ = 82852992.

The previous prime is 121022753. The next prime is 121022767. The reversal of 121022755 is 557220121.

It is a cyclic number.

It is not a de Polignac number, because 121022755 - 2¹ = 121022753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121022753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22377 + ... + 27253.

It is an arithmetic number, because the mean of its divisors is an integer number (10390140).

Almost surely, 2^121022755 is an apocalyptic number.

121022755 is a deficient number, since it is larger than the sum of its proper divisors (45219485).

121022755 is an equidigital number, since it uses as much as digits as its factorization.

121022755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5598.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 121022755 is about 11001.0342695585. The cubic root of 121022755 is about 494.6397474007.

Adding to 121022755 its reverse (557220121), we get a palindrome (678242876).

The spelling of 121022755 in words is "one hundred twenty-one million, twenty-two thousand, seven hundred fifty-five".