2220222987 has 8 divisors (see below), whose sum is σ = 3289219280. Its totient is φ = 1480148640.

The previous prime is 2220222971. The next prime is 2220223003. The reversal of 2220222987 is 7892220222.

It is an interprime number because it is at equal distance from previous prime (2220222971) and next prime (2220223003).

It is not a de Polignac number, because 2220222987 - 2⁴ = 2220222971 is a prime.

It is a super-2 number, since 2×2220222987² = 9858780224006404338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220222937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41115214 + ... + 41115267.

It is an arithmetic number, because the mean of its divisors is an integer number (411152410).

Almost surely, 2^2220222987 is an apocalyptic number.

2220222987 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2220222987 is a deficient number, since it is larger than the sum of its proper divisors (1068996293).

2220222987 is an equidigital number, since it uses as much as digits as its factorization.

2220222987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82230490 (or 82230484 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 2220222987 is about 47119.2422158931. The cubic root of 2220222987 is about 1304.5644259108.

It can be divided in two parts, 22 and 20222987, that added together give a square (20223009 = 4497²).

The spelling of 2220222987 in words is "two billion, two hundred twenty million, two hundred twenty-two thousand, nine hundred eighty-seven".