2213120450 has 18 divisors (see below), whose sum is σ = 4117022859. Its totient is φ = 885115120.

The previous prime is 2213120423. The next prime is 2213120557. The reversal of 2213120450 is 540213122.

It can be written as a sum of positive squares in 5 ways, for example, as 452929 + 2212667521 = 673^2 + 47039^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=33265.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 329324 + ... + 335976.

Almost surely, 2^2213120450 is an apocalyptic number.

2213120450 is a deficient number, since it is larger than the sum of its proper divisors (1903902409).

2213120450 is an frugal number, since it uses more digits than its factorization.

2213120450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13318 (or 6660 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2213120450 is about 47043.8141523410. The cubic root of 2213120450 is about 1303.1718307887.

Adding to 2213120450 its reverse (540213122), we get a palindrome (2753333572).

The spelling of 2213120450 in words is "two billion, two hundred thirteen million, one hundred twenty thousand, four hundred fifty".