222122011111 has 32 divisors (see below), whose sum is σ = 298435511808. Its totient is φ = 159659994240.

The previous prime is 222122011109. The next prime is 222122011127. The reversal of 222122011111 is 111110221222.

It is a cyclic number.

It is not a de Polignac number, because 222122011111 - 2¹ = 222122011109 is a prime.

It is a super-4 number, since 4×222122011111⁴ (a number of 46 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222122011171) 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, 1420180 + ... + 1568806.

It is an arithmetic number, because the mean of its divisors is an integer number (9326109744).

Almost surely, 2^222122011111 is an apocalyptic number.

222122011111 is a deficient number, since it is larger than the sum of its proper divisors (76313500697).

222122011111 is a wasteful number, since it uses less digits than its factorization.

222122011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150151.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 222122011111 its reverse (111110221222), we get a palindrome (333232232333).

The spelling of 222122011111 in words is "two hundred twenty-two billion, one hundred twenty-two million, eleven thousand, one hundred eleven".