2221032313109 has 4 divisors (see below), whose sum is σ = 2221129489740. Its totient is φ = 2220935136480.

The previous prime is 2221032313079. The next prime is 2221032313111. The reversal of 2221032313109 is 9013132301222.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2063308162084 + 157724151025 = 1436422^2 + 397145^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221032313109 - 2⁸ = 2221032312853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221032313009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48554024 + ... + 48599745.

It is an arithmetic number, because the mean of its divisors is an integer number (555282372435).

Almost surely, 2^{2221032313109} is an apocalyptic number.

It is an amenable number.

2221032313109 is a deficient number, since it is larger than the sum of its proper divisors (97176631).

2221032313109 is an equidigital number, since it uses as much as digits as its factorization.

2221032313109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97176630.

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 2221032313109 in words is "two trillion, two hundred twenty-one billion, thirty-two million, three hundred thirteen thousand, one hundred nine".