121442104 has 16 divisors (see below), whose sum is σ = 260233200. Its totient is φ = 52046592.

The previous prime is 121442089. The next prime is 121442107. The reversal of 121442104 is 401244121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121442107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1084249 + ... + 1084360.

It is an arithmetic number, because the mean of its divisors is an integer number (16264575).

Almost surely, 2^121442104 is an apocalyptic number.

121442104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

121442104 is an abundant number, since it is smaller than the sum of its proper divisors (138791096).

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

121442104 is a wasteful number, since it uses less digits than its factorization.

121442104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2168622 (or 2168618 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 121442104 is about 11020.0773137034. The cubic root of 121442104 is about 495.2104047200.

Adding to 121442104 its reverse (401244121), we get a palindrome (522686225).

It can be divided in two parts, 121 and 442104, that added together give a square (442225 = 665²).

The spelling of 121442104 in words is "one hundred twenty-one million, four hundred forty-two thousand, one hundred four".