2222000661 has 4 divisors (see below), whose sum is σ = 2962667552. Its totient is φ = 1481333772.

The previous prime is 2222000659. The next prime is 2222000681. The reversal of 2222000661 is 1660002222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2222000661 - 2¹ = 2222000659 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222000621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370333441 + ... + 370333446.

It is an arithmetic number, because the mean of its divisors is an integer number (740666888).

Almost surely, 2^2222000661 is an apocalyptic number.

It is an amenable number.

2222000661 is a deficient number, since it is larger than the sum of its proper divisors (740666891).

2222000661 is an equidigital number, since it uses as much as digits as its factorization.

2222000661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740666890.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 2222000661 is about 47138.1020088845. The cubic root of 2222000661 is about 1304.9125098052.

Adding to 2222000661 its reverse (1660002222), we get a palindrome (3882002883).

The spelling of 2222000661 in words is "two billion, two hundred twenty-two million, six hundred sixty-one", and thus it is an aban number.