222221120220211 has 16 divisors (see below), whose sum is σ = 259878659825664. Its totient is φ = 186041682941184.

The previous prime is 222221120220139. The next prime is 222221120220223. The reversal of 222221120220211 is 112022021122222.

It is not a de Polignac number, because 222221120220211 - 2⁷ = 222221120220083 is a prime.

It is a super-2 number, since 2×222221120220211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222221120221211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6654606 + ... + 22107148.

It is an arithmetic number, because the mean of its divisors is an integer number (16242416239104).

Almost surely, 2^{222221120220211} is an apocalyptic number.

222221120220211 is a deficient number, since it is larger than the sum of its proper divisors (37657539605453).

222221120220211 is a wasteful number, since it uses less digits than its factorization.

222221120220211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15500370.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 222221120220211 its reverse (112022021122222), we get a palindrome (334243141342433).

The spelling of 222221120220211 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, one hundred twenty million, two hundred twenty thousand, two hundred eleven".