111212221110122 has 64 divisors (see below), whose sum is σ = 184934980863360. Its totient is φ = 49733154662400.

The previous prime is 111212221110077. The next prime is 111212221110131. The reversal of 111212221110122 is 221011122212111.

It is a happy number.

It is a super-3 number, since 3×111212221110122³ (a number of 43 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111212221110094 and 111212221110103.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3879166004 + ... + 3879194672.

It is an arithmetic number, because the mean of its divisors is an integer number (2889609075990).

Almost surely, 2^{111212221110122} is an apocalyptic number.

111212221110122 is a deficient number, since it is larger than the sum of its proper divisors (73722759753238).

111212221110122 is a wasteful number, since it uses less digits than its factorization.

111212221110122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32007.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 111212221110122 its reverse (221011122212111), we get a palindrome (332223343322233).

The spelling of 111212221110122 in words is "one hundred eleven trillion, two hundred twelve billion, two hundred twenty-one million, one hundred ten thousand, one hundred twenty-two".