122221221099 has 8 divisors (see below), whose sum is σ = 162963451200. Its totient is φ = 81479902536.

The previous prime is 122221221077. The next prime is 122221221137. The reversal of 122221221099 is 990122122221.

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

It is not a de Polignac number, because 122221221099 - 2⁷ = 122221220971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122221221019) 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, 199464 + ... + 533130.

It is an arithmetic number, because the mean of its divisors is an integer number (20370431400).

Almost surely, 2^122221221099 is an apocalyptic number.

122221221099 is a deficient number, since it is larger than the sum of its proper divisors (40742230101).

122221221099 is a wasteful number, since it uses less digits than its factorization.

122221221099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455769.

The product of its (nonzero) digits is 5184, while the sum is 33.

It can be divided in two parts, 12222 and 1221099, that added together give a palindrome (1233321).

The spelling of 122221221099 in words is "one hundred twenty-two billion, two hundred twenty-one million, two hundred twenty-one thousand, ninety-nine".