122011222110221 has 4 divisors (see below), whose sum is σ = 128432865379200. Its totient is φ = 115589578841244.

The previous prime is 122011222110209. The next prime is 122011222110241.

122011222110221 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-122011222110221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122011222110193 and 122011222110202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122011222110241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3210821634461 + ... + 3210821634498.

It is an arithmetic number, because the mean of its divisors is an integer number (32108216344800).

Almost surely, 2^{122011222110221} is an apocalyptic number.

It is an amenable number.

122011222110221 is a deficient number, since it is larger than the sum of its proper divisors (6421643268979).

122011222110221 is an equidigital number, since it uses as much as digits as its factorization.

122011222110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6421643268978.

The product of its (nonzero) digits is 128, while the sum is 20.

The spelling of 122011222110221 in words is "one hundred twenty-two trillion, eleven billion, two hundred twenty-two million, one hundred ten thousand, two hundred twenty-one".