122221221101 has 8 divisors (see below), whose sum is σ = 140280888384. Its totient is φ = 104311427040.

The previous prime is 122221221077. The next prime is 122221221137. The reversal of 122221221101 is 101122122221.

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 122221221101 - 2²² = 122217026797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122221221101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122221221401) 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, 37466555 + ... + 37469816.

It is an arithmetic number, because the mean of its divisors is an integer number (17535111048).

Almost surely, 2^122221221101 is an apocalyptic number.

It is an amenable number.

122221221101 is a deficient number, since it is larger than the sum of its proper divisors (18059667283).

122221221101 is an equidigital number, since it uses as much as digits as its factorization.

122221221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74936611.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122221221101 its reverse (101122122221), we get a palindrome (223343343322).

The spelling of 122221221101 in words is "one hundred twenty-two billion, two hundred twenty-one million, two hundred twenty-one thousand, one hundred one".