122212111221201 has 4 divisors (see below), whose sum is σ = 162949481628272. Its totient is φ = 81474740814132.

The previous prime is 122212111221199. The next prime is 122212111221209. The reversal of 122212111221201 is 102122111212221.

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 122212111221201 - 2¹ = 122212111221199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122212111221209) 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, 20368685203531 + ... + 20368685203536.

It is an arithmetic number, because the mean of its divisors is an integer number (40737370407068).

Almost surely, 2^{122212111221201} is an apocalyptic number.

It is an amenable number.

122212111221201 is a deficient number, since it is larger than the sum of its proper divisors (40737370407071).

122212111221201 is an equidigital number, since it uses as much as digits as its factorization.

122212111221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40737370407070.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 122212111221201 its reverse (102122111212221), we get a palindrome (224334222433422).

The spelling of 122212111221201 in words is "one hundred twenty-two trillion, two hundred twelve billion, one hundred eleven million, two hundred twenty-one thousand, two hundred one".