121011442 has 8 divisors (see below), whose sum is σ = 182946816. Its totient is φ = 60029172.

The previous prime is 121011413. The next prime is 121011463. The reversal of 121011442 is 244110121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237958 + ... + 238465.

It is an arithmetic number, because the mean of its divisors is an integer number (22868352).

Almost surely, 2^121011442 is an apocalyptic number.

121011442 is a deficient number, since it is larger than the sum of its proper divisors (61935374).

121011442 is a wasteful number, since it uses less digits than its factorization.

121011442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476552.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 121011442 is about 11000.5200786145. The cubic root of 121011442 is about 494.6243342281.

Adding to 121011442 its reverse (244110121), we get a palindrome (365121563).

The spelling of 121011442 in words is "one hundred twenty-one million, eleven thousand, four hundred forty-two".