2220111002 has 4 divisors (see below), whose sum is σ = 3330166506. Its totient is φ = 1110055500.

The previous prime is 2220110989. The next prime is 2220111017. The reversal of 2220111002 is 2001110222.

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., 1183979281 + 1036131721 = 34409^2 + 32189^2 .

It is a super-2 number, since 2×2220111002² = 9857785722402888008, 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, 555027749 + ... + 555027752.

Almost surely, 2^2220111002 is an apocalyptic number.

2220111002 is a deficient number, since it is larger than the sum of its proper divisors (1110055504).

2220111002 is a wasteful number, since it uses less digits than its factorization.

2220111002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110055503.

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

The square root of 2220111002 is about 47118.0538859576. The cubic root of 2220111002 is about 1304.5424920623.

Adding to 2220111002 its reverse (2001110222), we get a palindrome (4221221224).

The spelling of 2220111002 in words is "two billion, two hundred twenty million, one hundred eleven thousand, two".