111221001022 has 16 divisors (see below), whose sum is σ = 170911717200. Its totient is φ = 54250605760.

The previous prime is 111221001007. The next prime is 111221001049. The reversal of 111221001022 is 220100122111.

111221001022 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×111221001022² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111221000993 and 111221001011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1581729 + ... + 1650547.

It is an arithmetic number, because the mean of its divisors is an integer number (10681982325).

Almost surely, 2^111221001022 is an apocalyptic number.

111221001022 is a deficient number, since it is larger than the sum of its proper divisors (59690716178).

111221001022 is a wasteful number, since it uses less digits than its factorization.

111221001022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88571.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 111221001022 its reverse (220100122111), we get a palindrome (331321123133).

The spelling of 111221001022 in words is "one hundred eleven billion, two hundred twenty-one million, one thousand, twenty-two".