122233001221 has 4 divisors (see below), whose sum is σ = 122334778444. Its totient is φ = 122131224000.

The previous prime is 122233001171. The next prime is 122233001263. The reversal of 122233001221 is 122100332221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 564585121 + 121668416100 = 23761^2 + 348810^2 .

It is a cyclic number.

It is not a de Polignac number, because 122233001221 - 2⁹ = 122233000709 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 (122233008221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50886810 + ... + 50889211.

It is an arithmetic number, because the mean of its divisors is an integer number (30583694611).

Almost surely, 2^122233001221 is an apocalyptic number.

It is an amenable number.

122233001221 is a deficient number, since it is larger than the sum of its proper divisors (101777223).

122233001221 is a wasteful number, since it uses less digits than its factorization.

122233001221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101777222.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 122233001221 its reverse (122100332221), we get a palindrome (244333333442).

The spelling of 122233001221 in words is "one hundred twenty-two billion, two hundred thirty-three million, one thousand, two hundred twenty-one".