222222022111 has 4 divisors (see below), whose sum is σ = 222230118424. Its totient is φ = 222213925800.

The previous prime is 222222022103. The next prime is 222222022123. The reversal of 222222022111 is 111220222222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111220222222 = 2 ⋅55610111111.

It is a cyclic number.

It is not a de Polignac number, because 222222022111 - 2³ = 222222022103 is a prime.

It is a super-2 number, since 2×222222022111² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222222052111) 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, 4006845 + ... + 4061926.

It is an arithmetic number, because the mean of its divisors is an integer number (55557529606).

Almost surely, 2^222222022111 is an apocalyptic number.

222222022111 is a deficient number, since it is larger than the sum of its proper divisors (8096313).

222222022111 is an equidigital number, since it uses as much as digits as its factorization.

222222022111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8096312.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222222022111 its reverse (111220222222), we get a palindrome (333442244333).

The spelling of 222222022111 in words is "two hundred twenty-two billion, two hundred twenty-two million, twenty-two thousand, one hundred eleven".