2107221456 has 20 divisors (see below), whose sum is σ = 5443655552. Its totient is φ = 702407136.

The previous prime is 2107221439. The next prime is 2107221469. The reversal of 2107221456 is 6541227012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21950176 + ... + 21950271.

Almost surely, 2^2107221456 is an apocalyptic number.

It is an amenable number.

2107221456 is an abundant number, since it is smaller than the sum of its proper divisors (3336434096).

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

2107221456 is a wasteful number, since it uses less digits than its factorization.

2107221456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43900458 (or 43900452 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 2107221456 is about 45904.4818726886. The cubic root of 2107221456 is about 1282.0453659504.

Adding to 2107221456 its reverse (6541227012), we get a palindrome (8648448468).

The spelling of 2107221456 in words is "two billion, one hundred seven million, two hundred twenty-one thousand, four hundred fifty-six".