122245243221 has 8 divisors (see below), whose sum is σ = 163034391520. Its totient is φ = 81476461872.

The previous prime is 122245243157. The next prime is 122245243231. The reversal of 122245243221 is 122342542221.

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

It is not a de Polignac number, because 122245243221 - 2⁶ = 122245243157 is a prime.

It is a super-2 number, since 2×122245243221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122245243231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5077726 + ... + 5101743.

It is an arithmetic number, because the mean of its divisors is an integer number (20379298940).

Almost surely, 2^122245243221 is an apocalyptic number.

It is an amenable number.

122245243221 is a deficient number, since it is larger than the sum of its proper divisors (40789148299).

122245243221 is a wasteful number, since it uses less digits than its factorization.

122245243221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10183475.

The product of its digits is 15360, while the sum is 30.

Adding to 122245243221 its reverse (122342542221), we get a palindrome (244587785442).

The spelling of 122245243221 in words is "one hundred twenty-two billion, two hundred forty-five million, two hundred forty-three thousand, two hundred twenty-one".