2223212505 has 32 divisors (see below), whose sum is σ = 3625585920. Its totient is φ = 1163116800.

The previous prime is 2223212501. The next prime is 2223212513. The reversal of 2223212505 is 5052123222.

It is not a de Polignac number, because 2223212505 - 2² = 2223212501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2223212501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158404 + ... + 171866.

It is an arithmetic number, because the mean of its divisors is an integer number (113299560).

Almost surely, 2^2223212505 is an apocalyptic number.

It is an amenable number.

2223212505 is a deficient number, since it is larger than the sum of its proper divisors (1402373415).

2223212505 is a wasteful number, since it uses less digits than its factorization.

2223212505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13681.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2223212505 is about 47150.9544442104. The cubic root of 2223212505 is about 1305.1496929032.

Adding to 2223212505 its reverse (5052123222), we get a palindrome (7275335727).

The spelling of 2223212505 in words is "two billion, two hundred twenty-three million, two hundred twelve thousand, five hundred five".