222211301221 has 32 divisors (see below), whose sum is σ = 298919835648. Its totient is φ = 160135557120.

The previous prime is 222211301201. The next prime is 222211301243. The reversal of 222211301221 is 122103112222.

It is not a de Polignac number, because 222211301221 - 2⁵ = 222211301189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222211301201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2268820 + ... + 2364733.

It is an arithmetic number, because the mean of its divisors is an integer number (9341244864).

Almost surely, 2^222211301221 is an apocalyptic number.

It is an amenable number.

222211301221 is a deficient number, since it is larger than the sum of its proper divisors (76708534427).

222211301221 is a wasteful number, since it uses less digits than its factorization.

222211301221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4633621.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 222211301221 its reverse (122103112222), we get a palindrome (344314413443).

The spelling of 222211301221 in words is "two hundred twenty-two billion, two hundred eleven million, three hundred one thousand, two hundred twenty-one".