121202255 has 8 divisors (see below), whose sum is σ = 148187232. Its totient is φ = 95132128.

The previous prime is 121202239. The next prime is 121202261. The reversal of 121202255 is 552202121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 121202255 - 2⁴ = 121202239 is a prime.

It is a Duffinian number.

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, 228419 + ... + 228948.

It is an arithmetic number, because the mean of its divisors is an integer number (18523404).

Almost surely, 2^121202255 is an apocalyptic number.

121202255 is a deficient number, since it is larger than the sum of its proper divisors (26984977).

121202255 is an equidigital number, since it uses as much as digits as its factorization.

121202255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457425.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 121202255 is about 11009.1895705361. The cubic root of 121202255 is about 494.8841751926.

Adding to 121202255 its reverse (552202121), we get a palindrome (673404376).

The spelling of 121202255 in words is "one hundred twenty-one million, two hundred two thousand, two hundred fifty-five".