122120032221 has 12 divisors (see below), whose sum is σ = 192431566080. Its totient is φ = 74012140680.

The previous prime is 122120032217. The next prime is 122120032343. The reversal of 122120032221 is 122230021221.

122120032221 is a `hidden beast` number, since 122 + 1 + 200 + 322 + 21 = 666.

It is not a de Polignac number, because 122120032221 - 2² = 122120032217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122120032194 and 122120032203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122120432221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 616767741 + ... + 616767938.

It is an arithmetic number, because the mean of its divisors is an integer number (16035963840).

Almost surely, 2^122120032221 is an apocalyptic number.

122120032221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122120032221 is a deficient number, since it is larger than the sum of its proper divisors (70311533859).

122120032221 is a wasteful number, since it uses less digits than its factorization.

122120032221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233535696 (or 1233535693 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 122120032221 its reverse (122230021221), we get a palindrome (244350053442).

The spelling of 122120032221 in words is "one hundred twenty-two billion, one hundred twenty million, thirty-two thousand, two hundred twenty-one".