111222002212 has 6 divisors (see below), whose sum is σ = 194638503878. Its totient is φ = 55611001104.

The previous prime is 111222002207. The next prime is 111222002237. The reversal of 111222002212 is 212200222111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 100967604516 + 10254397696 = 317754^2 + 101264^2 .

It is a super-2 number, since 2×111222002212² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13902750273 + ... + 13902750280.

Almost surely, 2^111222002212 is an apocalyptic number.

It is an amenable number.

111222002212 is a deficient number, since it is larger than the sum of its proper divisors (83416501666).

111222002212 is a wasteful number, since it uses less digits than its factorization.

111222002212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27805500557 (or 27805500555 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 111222002212 its reverse (212200222111), we get a palindrome (323422224323).

The spelling of 111222002212 in words is "one hundred eleven billion, two hundred twenty-two million, two thousand, two hundred twelve".