122020112210221 has 4 divisors (see below), whose sum is σ = 128442223379200. Its totient is φ = 115598001041244.

The previous prime is 122020112210189. The next prime is 122020112210273. The reversal of 122020112210221 is 122012211020221.

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 cyclic number.

It is not a de Polignac number, because 122020112210221 - 2⁵ = 122020112210189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 6422111168959 = 122020112210221 / (1 + 2 + 2 + 0 + 2 + 0 + 1 + 1 + 2 + 2 + 1 + 0 + 2 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122020112210291) 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, 3211055584461 + ... + 3211055584498.

It is an arithmetic number, because the mean of its divisors is an integer number (32110555844800).

Almost surely, 2^{122020112210221} is an apocalyptic number.

It is an amenable number.

122020112210221 is a deficient number, since it is larger than the sum of its proper divisors (6422111168979).

122020112210221 is an equidigital number, since it uses as much as digits as its factorization.

122020112210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6422111168978.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 122020112210221 its reverse (122012211020221), we get a palindrome (244032323230442).

The spelling of 122020112210221 in words is "one hundred twenty-two trillion, twenty billion, one hundred twelve million, two hundred ten thousand, two hundred twenty-one".