1002202112 has 22 divisors (see below), whose sum is σ = 2003427558. Its totient is φ = 501100544.

The previous prime is 1002202111. The next prime is 1002202127. The reversal of 1002202112 is 2112022001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 511845376 + 490356736 = 22624^2 + 22144^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1002202093 and 1002202102.

It is not an unprimeable number, because it can be changed into a prime (1002202111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488333 + ... + 490380.

It is an arithmetic number, because the mean of its divisors is an integer number (91064889).

Almost surely, 2^1002202112 is an apocalyptic number.

It is an amenable number.

1002202112 is a deficient number, since it is larger than the sum of its proper divisors (1001225446).

1002202112 is an frugal number, since it uses more digits than its factorization.

1002202112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978733 (or 978715 counting only the distinct ones).

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

The square root of 1002202112 is about 31657.5759021439. The cubic root of 1002202112 is about 1000.7334991807.

Adding to 1002202112 its reverse (2112022001), we get a palindrome (3114224113).

The spelling of 1002202112 in words is "one billion, two million, two hundred two thousand, one hundred twelve".