122200120112021 has 4 divisors (see below), whose sum is σ = 139657280128032. Its totient is φ = 104742960096012.

The previous prime is 122200120111943. The next prime is 122200120112131. The reversal of 122200120112021 is 120211021002221.

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 not a de Polignac number, because 122200120112021 - 2²⁶ = 122200053003157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122200120012021) 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, 8728580007995 + ... + 8728580008008.

It is an arithmetic number, because the mean of its divisors is an integer number (34914320032008).

Almost surely, 2^{122200120112021} is an apocalyptic number.

It is an amenable number.

122200120112021 is a deficient number, since it is larger than the sum of its proper divisors (17457160016011).

122200120112021 is an equidigital number, since it uses as much as digits as its factorization.

122200120112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17457160016010.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122200120112021 its reverse (120211021002221), we get a palindrome (242411141114242).

The spelling of 122200120112021 in words is "one hundred twenty-two trillion, two hundred billion, one hundred twenty million, one hundred twelve thousand, twenty-one".