121301442 has 16 divisors (see below), whose sum is σ = 269558880. Its totient is φ = 40433796.

The previous prime is 121301387. The next prime is 121301449. The reversal of 121301442 is 244103121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (121301449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1123108 + ... + 1123215.

It is an arithmetic number, because the mean of its divisors is an integer number (16847430).

Almost surely, 2^121301442 is an apocalyptic number.

121301442 is an abundant number, since it is smaller than the sum of its proper divisors (148257438).

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

121301442 is a wasteful number, since it uses less digits than its factorization.

121301442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246334 (or 2246328 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 121301442 is about 11013.6933859628. The cubic root of 121301442 is about 495.0191360830.

Adding to 121301442 its reverse (244103121), we get a palindrome (365404563).

The spelling of 121301442 in words is "one hundred twenty-one million, three hundred one thousand, four hundred forty-two".