121215255230 has 8 divisors (see below), whose sum is σ = 218187459432. Its totient is φ = 48486102088.

The previous prime is 121215255229. The next prime is 121215255269. The reversal of 121215255230 is 32552512121.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 121215255193 and 121215255202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6060762752 + ... + 6060762771.

It is an arithmetic number, because the mean of its divisors is an integer number (27273432429).

Almost surely, 2^121215255230 is an apocalyptic number.

121215255230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121215255230 is a deficient number, since it is larger than the sum of its proper divisors (96972204202).

121215255230 is a wasteful number, since it uses less digits than its factorization.

121215255230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12121525530.

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 121215255230 its reverse (32552512121), we get a palindrome (153767767351).

The spelling of 121215255230 in words is "one hundred twenty-one billion, two hundred fifteen million, two hundred fifty-five thousand, two hundred thirty".