121022312242 has 8 divisors (see below), whose sum is σ = 195497581356. Its totient is φ = 55856451792.

The previous prime is 121022312219. The next prime is 121022312261. The reversal of 121022312242 is 242213220121.

It can be written as a sum of positive squares in 2 ways, for example, as 116983836841 + 4038475401 = 342029^2 + 63549^2 .

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 (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2327352133 + ... + 2327352184.

Almost surely, 2^121022312242 is an apocalyptic number.

121022312242 is a deficient number, since it is larger than the sum of its proper divisors (74475269114).

121022312242 is a wasteful number, since it uses less digits than its factorization.

121022312242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4654704332.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 121022312242 its reverse (242213220121), we get a palindrome (363235532363).

The spelling of 121022312242 in words is "one hundred twenty-one billion, twenty-two million, three hundred twelve thousand, two hundred forty-two".