1112220021222 has 96 divisors (see below), whose sum is σ = 2458868649120. Its totient is φ = 363242880000.

The previous prime is 1112220021203. The next prime is 1112220021229. The reversal of 1112220021222 is 2221200222111.

It is a happy number.

It is a super-2 number, since 2×1112220021222² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1112220021195 and 1112220021204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112220021229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 397078222 + ... + 397081022.

It is an arithmetic number, because the mean of its divisors is an integer number (25613215095).

Almost surely, 2^{1112220021222} is an apocalyptic number.

1112220021222 is an abundant number, since it is smaller than the sum of its proper divisors (1346648627898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1112220021222 is a wasteful number, since it uses less digits than its factorization.

1112220021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4150 (or 4147 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1112220021222 its reverse (2221200222111), we get a palindrome (3333420243333).

The spelling of 1112220021222 in words is "one trillion, one hundred twelve billion, two hundred twenty million, twenty-one thousand, two hundred twenty-two".