111221122022 has 24 divisors (see below), whose sum is σ = 170271006480. Its totient is φ = 54484747200.

The previous prime is 111221122009. The next prime is 111221122037. The reversal of 111221122022 is 220221122111.

It is a super-2 number, since 2×111221122022² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1574804 + ... + 1643912.

It is an arithmetic number, because the mean of its divisors is an integer number (7094625270).

Almost surely, 2^111221122022 is an apocalyptic number.

111221122022 is a deficient number, since it is larger than the sum of its proper divisors (59049884458).

111221122022 is an equidigital number, since it uses as much as digits as its factorization.

111221122022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69408 (or 69335 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 111221122022 its reverse (220221122111), we get a palindrome (331442244133).

The spelling of 111221122022 in words is "one hundred eleven billion, two hundred twenty-one million, one hundred twenty-two thousand, twenty-two".