122246642221 has 8 divisors (see below), whose sum is σ = 133539470784. Its totient is φ = 110983729920.

The previous prime is 122246642197. The next prime is 122246642227.

It is a happy number.

122246642221 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 122246642221 - 2⁹ = 122246641709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122246642227) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7470516 + ... + 7486861.

It is an arithmetic number, because the mean of its divisors is an integer number (16692433848).

Almost surely, 2^122246642221 is an apocalyptic number.

122246642221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122246642221 is a deficient number, since it is larger than the sum of its proper divisors (11292828563).

122246642221 is a wasteful number, since it uses less digits than its factorization.

122246642221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14958131.

The product of its digits is 36864, while the sum is 34.

It can be divided in two parts, 122246 and 642221, that added together give a palindrome (764467).

The spelling of 122246642221 in words is "one hundred twenty-two billion, two hundred forty-six million, six hundred forty-two thousand, two hundred twenty-one".