121442024112 has 40 divisors (see below), whose sum is σ = 316120094400. Its totient is φ = 40171659840.

The previous prime is 121442024059. The next prime is 121442024131. The reversal of 121442024112 is 211420244121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 9650362 + ... + 9662937.

It is an arithmetic number, because the mean of its divisors is an integer number (7903002360).

Almost surely, 2^121442024112 is an apocalyptic number.

121442024112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121442024112 is an abundant number, since it is smaller than the sum of its proper divisors (194678070288).

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

121442024112 is a wasteful number, since it uses less digits than its factorization.

121442024112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19313441 (or 19313435 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 121442024112 its reverse (211420244121), we get a palindrome (332862268233).

The spelling of 121442024112 in words is "one hundred twenty-one billion, four hundred forty-two million, twenty-four thousand, one hundred twelve".