2215210044 has 24 divisors (see below), whose sum is σ = 5169588480. Its totient is φ = 738294064.

The previous prime is 2215210043. The next prime is 2215210069. The reversal of 2215210044 is 4400125122.

It is a self number, because there is not a number n which added to its sum of digits gives 2215210044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215210043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139327 + ... + 154409.

It is an arithmetic number, because the mean of its divisors is an integer number (215399520).

Almost surely, 2^2215210044 is an apocalyptic number.

It is an amenable number.

2215210044 is an abundant number, since it is smaller than the sum of its proper divisors (2954378436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2215210044 is a wasteful number, since it uses less digits than its factorization.

2215210044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27329 (or 27327 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 2215210044 is about 47066.0179322619. The cubic root of 2215210044 is about 1303.5818466484.

Adding to 2215210044 its reverse (4400125122), we get a palindrome (6615335166).

The spelling of 2215210044 in words is "two billion, two hundred fifteen million, two hundred ten thousand, forty-four".