122021120221 has 32 divisors (see below), whose sum is σ = 165521680128. Its totient is φ = 86862551040.

The previous prime is 122021120191. The next prime is 122021120227.

It is a happy number.

122021120221 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 122021120221 - 2⁹ = 122021119709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122021120195 and 122021120204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122021120227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 531250 + ... + 725443.

It is an arithmetic number, because the mean of its divisors is an integer number (5172552504).

Almost surely, 2^122021120221 is an apocalyptic number.

122021120221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122021120221 is a deficient number, since it is larger than the sum of its proper divisors (43500559907).

122021120221 is a wasteful number, since it uses less digits than its factorization.

122021120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256821.

The product of its (nonzero) digits is 64, while the sum is 16.

It can be divided in two parts, 122021 and 120221, that added together give a palindrome (242242).

The spelling of 122021120221 in words is "one hundred twenty-two billion, twenty-one million, one hundred twenty thousand, two hundred twenty-one".