122120001112221 has 24 divisors (see below), whose sum is σ = 201595278108224. Its totient is φ = 69782734673280.

The previous prime is 122120001112201. The next prime is 122120001112243. The reversal of 122120001112221 is 122211100021221.

122120001112221 is a `hidden beast` number, since 1 + 221 + 200 + 0 + 11 + 12 + 221 = 666.

It is not a de Polignac number, because 122120001112221 - 2⁶ = 122120001112157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122120001112194 and 122120001112203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122120001112201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43840725 + ... + 46542981.

Almost surely, 2^{122120001112221} is an apocalyptic number.

It is an amenable number.

122120001112221 is a deficient number, since it is larger than the sum of its proper divisors (79475276996003).

122120001112221 is a wasteful number, since it uses less digits than its factorization.

122120001112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3419601 (or 3419598 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 122120001112221 its reverse (122211100021221), we get a palindrome (244331101133442).

The spelling of 122120001112221 in words is "one hundred twenty-two trillion, one hundred twenty billion, one million, one hundred twelve thousand, two hundred twenty-one".