2213220534 has 128 divisors (see below), whose sum is σ = 5337446400. Its totient is φ = 611275392.

The previous prime is 2213220487. The next prime is 2213220551. The reversal of 2213220534 is 4350223122.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11234524 + ... + 11234720.

It is an arithmetic number, because the mean of its divisors is an integer number (41698800).

Almost surely, 2^2213220534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2213220534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2668723200).

2213220534 is an abundant number, since it is smaller than the sum of its proper divisors (3124225866).

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

2213220534 is a wasteful number, since it uses less digits than its factorization.

2213220534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379 (or 365 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 2213220534 is about 47044.8778720915. The cubic root of 2213220534 is about 1303.1914749497.

Adding to 2213220534 its reverse (4350223122), we get a palindrome (6563443656).

The spelling of 2213220534 in words is "two billion, two hundred thirteen million, two hundred twenty thousand, five hundred thirty-four".