222232121211 has 16 divisors (see below), whose sum is σ = 296787175200. Its totient is φ = 147916048128.

The previous prime is 222232121203. The next prime is 222232121231. The reversal of 222232121211 is 112121232222.

It is not a de Polignac number, because 222232121211 - 2³ = 222232121203 is a prime.

It is a super-2 number, since 2×222232121211² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222232121231) 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, 7044405 + ... + 7075881.

It is an arithmetic number, because the mean of its divisors is an integer number (18549198450).

Almost surely, 2^222232121211 is an apocalyptic number.

222232121211 is a deficient number, since it is larger than the sum of its proper divisors (74555053989).

222232121211 is a wasteful number, since it uses less digits than its factorization.

222232121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35198.

The product of its digits is 384, while the sum is 21.

Adding to 222232121211 its reverse (112121232222), we get a palindrome (334353353433).

The spelling of 222232121211 in words is "two hundred twenty-two billion, two hundred thirty-two million, one hundred twenty-one thousand, two hundred eleven".