121122442 has 8 divisors (see below), whose sum is σ = 207638496. Its totient is φ = 51909612.

The previous prime is 121122413. The next prime is 121122493. The reversal of 121122442 is 244221121.

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

It is a super-3 number, since 3×121122442³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4325788 + ... + 4325815.

It is an arithmetic number, because the mean of its divisors is an integer number (25954812).

Almost surely, 2^121122442 is an apocalyptic number.

121122442 is a deficient number, since it is larger than the sum of its proper divisors (86516054).

121122442 is an equidigital number, since it uses as much as digits as its factorization.

121122442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8651612.

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

The square root of 121122442 is about 11005.5641381985. The cubic root of 121122442 is about 494.7755224731.

Adding to 121122442 its reverse (244221121), we get a palindrome (365343563).

It can be divided in two parts, 1211 and 22442, that added together give a triangular number (23653 = T₂₁₇).

The spelling of 121122442 in words is "one hundred twenty-one million, one hundred twenty-two thousand, four hundred forty-two".