2215213442 has 8 divisors (see below), whose sum is σ = 3578421756. Its totient is φ = 1022406192.

The previous prime is 2215213433. The next prime is 2215213463. The reversal of 2215213442 is 2443125122.

It can be written as a sum of positive squares in 2 ways, for example, as 1843070761 + 372142681 = 42931^2 + 19291^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 85200517 = 2215213442 / (2 + 2 + 1 + 5 + 2 + 1 + 3 + 4 + 4 + 2).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42600233 + ... + 42600284.

Almost surely, 2^2215213442 is an apocalyptic number.

2215213442 is a deficient number, since it is larger than the sum of its proper divisors (1363208314).

2215213442 is a wasteful number, since it uses less digits than its factorization.

2215213442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85200532.

The product of its digits is 3840, while the sum is 26.

The square root of 2215213442 is about 47066.0540304793. The cubic root of 2215213442 is about 1303.5825131869.

Adding to 2215213442 its reverse (2443125122), we get a palindrome (4658338564).

The spelling of 2215213442 in words is "two billion, two hundred fifteen million, two hundred thirteen thousand, four hundred forty-two".