111221001148 has 24 divisors (see below), whose sum is σ = 200223464672. Its totient is φ = 54019203264.

The previous prime is 111221001121. The next prime is 111221001149. The reversal of 111221001148 is 841100122111.

It is a happy number.

It is a super-2 number, since 2×111221001148² (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 (111221001149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 522240 + ... + 703687.

Almost surely, 2^111221001148 is an apocalyptic number.

It is an amenable number.

111221001148 is a deficient number, since it is larger than the sum of its proper divisors (89002463524).

111221001148 is a wasteful number, since it uses less digits than its factorization.

111221001148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226581 (or 1226579 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 22.

Adding to 111221001148 its reverse (841100122111), we get a palindrome (952321123259).

The spelling of 111221001148 in words is "one hundred eleven billion, two hundred twenty-one million, one thousand, one hundred forty-eight".