122020222221 has 48 divisors (see below), whose sum is σ = 191050030080. Its totient is φ = 74791296000.

The previous prime is 122020222211. The next prime is 122020222223. The reversal of 122020222221 is 122222020221.

122020222221 is a `hidden beast` number, since 1 + 220 + 2 + 0 + 222 + 221 = 666.

It is not a de Polignac number, because 122020222221 - 2⁶ = 122020222157 is a prime.

It is a super-3 number, since 3×122020222221³ (a number of 34 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 122020222194 and 122020222203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122020222223) 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 47 ways as a sum of consecutive naturals, for example, 1293541 + ... + 1384661.

It is an arithmetic number, because the mean of its divisors is an integer number (3980208960).

Almost surely, 2^122020222221 is an apocalyptic number.

It is an amenable number.

122020222221 is a deficient number, since it is larger than the sum of its proper divisors (69029807859).

122020222221 is a wasteful number, since it uses less digits than its factorization.

122020222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91378 (or 91375 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 122020222221 its reverse (122222020221), we get a palindrome (244242242442).

The spelling of 122020222221 in words is "one hundred twenty-two billion, twenty million, two hundred twenty-two thousand, two hundred twenty-one".