121230110 has 16 divisors (see below), whose sum is σ = 218678400. Its totient is φ = 48388896.

The previous prime is 121230097. The next prime is 121230139. The reversal of 121230110 is 11032121.

It is a super-2 number, since 2×121230110² = 29393479141224200, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121230091 and 121230100.

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, 7865 + ... + 17444.

It is an arithmetic number, because the mean of its divisors is an integer number (13667400).

Almost surely, 2^121230110 is an apocalyptic number.

121230110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121230110 is a deficient number, since it is larger than the sum of its proper divisors (97448290).

121230110 is a wasteful number, since it uses less digits than its factorization.

121230110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25795.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 121230110 is about 11010.4545773551. The cubic root of 121230110 is about 494.9220841210.

Adding to 121230110 its reverse (11032121), we get a palindrome (132262231).

The spelling of 121230110 in words is "one hundred twenty-one million, two hundred thirty thousand, one hundred ten".