121042110 has 32 divisors (see below), whose sum is σ = 332001792. Its totient is φ = 27666720.

The previous prime is 121042093. The next prime is 121042111. The reversal of 121042110 is 11240121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121042111) 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, 287986 + ... + 288405.

It is an arithmetic number, because the mean of its divisors is an integer number (10375056).

Almost surely, 2^121042110 is an apocalyptic number.

121042110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121042110 is an abundant number, since it is smaller than the sum of its proper divisors (210959682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121042110 is a wasteful number, since it uses less digits than its factorization.

121042110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576408.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 121042110 is about 11001.9139244042. The cubic root of 121042110 is about 494.6661150095. Note that the first 3 decimals are identical.

Adding to 121042110 its reverse (11240121), we get a palindrome (132282231).

The spelling of 121042110 in words is "one hundred twenty-one million, forty-two thousand, one hundred ten".