222201112121211 has 8 divisors (see below), whose sum is σ = 296268351490384. Its totient is φ = 148133973749760.

The previous prime is 222201112121141. The next prime is 222201112121239. The reversal of 222201112121211 is 112121211102222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222201112121211 - 2³⁵ = 222166752382843 is a prime.

It is a super-2 number, since 2×222201112121211² (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 (222201112161211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19957510 + ... + 29029371.

It is an arithmetic number, because the mean of its divisors is an integer number (37033543936298).

Almost surely, 2^{222201112121211} is an apocalyptic number.

222201112121211 is a deficient number, since it is larger than the sum of its proper divisors (74067239369173).

222201112121211 is a wasteful number, since it uses less digits than its factorization.

222201112121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50498861.

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

Adding to 222201112121211 its reverse (112121211102222), we get a palindrome (334322323223433).

The spelling of 222201112121211 in words is "two hundred twenty-two trillion, two hundred one billion, one hundred twelve million, one hundred twenty-one thousand, two hundred eleven".