2220851810 has 8 divisors (see below), whose sum is σ = 3997533276. Its totient is φ = 888340720.

The previous prime is 2220851791. The next prime is 2220851837. The reversal of 2220851810 is 181580222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2216620561 + 4231249 = 47081^2 + 2057^2 .

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

It is a super-2 number, since 2×2220851810² = 9864365523960552200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111042581 + ... + 111042600.

Almost surely, 2^2220851810 is an apocalyptic number.

2220851810 is a deficient number, since it is larger than the sum of its proper divisors (1776681466).

2220851810 is a wasteful number, since it uses less digits than its factorization.

2220851810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222085188.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 2220851810 is about 47125.9144208364. The cubic root of 2220851810 is about 1304.6875761057.

The spelling of 2220851810 in words is "two billion, two hundred twenty million, eight hundred fifty-one thousand, eight hundred ten".