1002220112 has 10 divisors (see below), whose sum is σ = 1941801498. Its totient is φ = 501110048.

The previous prime is 1002220097. The next prime is 1002220117. The reversal of 1002220112 is 2110222001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 811338256 + 190881856 = 28484^2 + 13816^2 .

It is a super-3 number, since 3×1002220112³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1002220093 and 1002220102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002220117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31319363 + ... + 31319394.

Almost surely, 2^1002220112 is an apocalyptic number.

It is an amenable number.

1002220112 is a deficient number, since it is larger than the sum of its proper divisors (939581386).

1002220112 is an equidigital number, since it uses as much as digits as its factorization.

1002220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62638765 (or 62638759 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1002220112 is about 31657.8601930074. The cubic root of 1002220112 is about 1000.7394903526.

Adding to 1002220112 its reverse (2110222001), we get a palindrome (3112442113).

The spelling of 1002220112 in words is "one billion, two million, two hundred twenty thousand, one hundred twelve".