121220230 has 32 divisors (see below), whose sum is σ = 227082240. Its totient is φ = 46539360.

The previous prime is 121220213. The next prime is 121220243. The reversal of 121220230 is 32022121.

It is a super-2 number, since 2×121220230² = 29388688322505800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121220230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37831 + ... + 40909.

It is an arithmetic number, because the mean of its divisors is an integer number (7096320).

Almost surely, 2^121220230 is an apocalyptic number.

121220230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121220230 is a deficient number, since it is larger than the sum of its proper divisors (105862010).

121220230 is a wasteful number, since it uses less digits than its factorization.

121220230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3244.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 121220230 is about 11010.0059037223. The cubic root of 121220230 is about 494.9086387180.

Adding to 121220230 its reverse (32022121), we get a palindrome (153242351).

The spelling of 121220230 in words is "one hundred twenty-one million, two hundred twenty thousand, two hundred thirty".