2225213642 has 4 divisors (see below), whose sum is σ = 3337820466. Its totient is φ = 1112606820.

The previous prime is 2225213621. The next prime is 2225213647. The reversal of 2225213642 is 2463125222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2197640641 + 27573001 = 46879^2 + 5251^2 .

It is not an unprimeable number, because it can be changed into a prime (2225213647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556303409 + ... + 556303412.

Almost surely, 2^2225213642 is an apocalyptic number.

2225213642 is a deficient number, since it is larger than the sum of its proper divisors (1112606824).

2225213642 is a wasteful number, since it uses less digits than its factorization.

2225213642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112606823.

The product of its digits is 11520, while the sum is 29.

The square root of 2225213642 is about 47172.1702065953. The cubic root of 2225213642 is about 1305.5411684662.

Adding to 2225213642 its reverse (2463125222), we get a palindrome (4688338864).

The spelling of 2225213642 in words is "two billion, two hundred twenty-five million, two hundred thirteen thousand, six hundred forty-two".