122021322221 has 8 divisors (see below), whose sum is σ = 124454870400. Its totient is φ = 119609998560.

The previous prime is 122021322211. The next prime is 122021322239. The reversal of 122021322221 is 122223120221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122021322221 is a prime.

It is a super-2 number, since 2×122021322221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122021322193 and 122021322202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122021322211) 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, 5545040 + ... + 5567001.

It is an arithmetic number, because the mean of its divisors is an integer number (15556858800).

Almost surely, 2^122021322221 is an apocalyptic number.

It is an amenable number.

122021322221 is a deficient number, since it is larger than the sum of its proper divisors (2433548179).

122021322221 is a wasteful number, since it uses less digits than its factorization.

122021322221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11112259.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 122021322221 its reverse (122223120221), we get a palindrome (244244442442).

The spelling of 122021322221 in words is "one hundred twenty-two billion, twenty-one million, three hundred twenty-two thousand, two hundred twenty-one".