111222101272 has 8 divisors (see below), whose sum is σ = 208541439900. Its totient is φ = 55611050632.

The previous prime is 111222101251. The next prime is 111222101273. The reversal of 111222101272 is 272101222111.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×111222101272² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111222101273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6951381322 + ... + 6951381337.

Almost surely, 2^111222101272 is an apocalyptic number.

It is an amenable number.

111222101272 is a deficient number, since it is larger than the sum of its proper divisors (97319338628).

111222101272 is a wasteful number, since it uses less digits than its factorization.

111222101272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13902762665 (or 13902762661 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 111222101272 its reverse (272101222111), we get a palindrome (383323323383).

The spelling of 111222101272 in words is "one hundred eleven billion, two hundred twenty-two million, one hundred one thousand, two hundred seventy-two".