2112221002 has 4 divisors (see below), whose sum is σ = 3168331506. Its totient is φ = 1056110500.

The previous prime is 2112220987. The next prime is 2112221011. The reversal of 2112221002 is 2001222112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1512509881 + 599711121 = 38891^2 + 24489^2 .

It is a super-2 number, since 2×2112221002² = 8922955122579768008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528055249 + ... + 528055252.

Almost surely, 2^2112221002 is an apocalyptic number.

2112221002 is a deficient number, since it is larger than the sum of its proper divisors (1056110504).

2112221002 is a wasteful number, since it uses less digits than its factorization.

2112221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056110503.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2112221002 is about 45958.9055787885. The cubic root of 2112221002 is about 1283.0584824262.

Adding to 2112221002 its reverse (2001222112), we get a palindrome (4113443114).

It can be divided in two parts, 21122 and 21002, that added together give a palindrome (42124).

The spelling of 2112221002 in words is "two billion, one hundred twelve million, two hundred twenty-one thousand, two".