2212722487 has 4 divisors (see below), whose sum is σ = 2213014360. Its totient is φ = 2212430616.

The previous prime is 2212722469. The next prime is 2212722511. The reversal of 2212722487 is 7842272122.

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

It is a cyclic number.

It is not a de Polignac number, because 2212722487 - 2³¹ = 65238839 is a prime.

It is a super-2 number, since 2×2212722487² = 9792281608950930338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212722427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134253 + ... + 149830.

It is an arithmetic number, because the mean of its divisors is an integer number (553253590).

Almost surely, 2^2212722487 is an apocalyptic number.

2212722487 is a deficient number, since it is larger than the sum of its proper divisors (291873).

2212722487 is an equidigital number, since it uses as much as digits as its factorization.

2212722487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291872.

The product of its digits is 50176, while the sum is 37.

The square root of 2212722487 is about 47039.5842562410. The cubic root of 2212722487 is about 1303.0937140493.

The spelling of 2212722487 in words is "two billion, two hundred twelve million, seven hundred twenty-two thousand, four hundred eighty-seven".