2220311312 has 10 divisors (see below), whose sum is σ = 4301853198. Its totient is φ = 1110155648.

The previous prime is 2220311297. The next prime is 2220311339. The reversal of 2220311312 is 2131130222.

It can be written as a sum of positive squares in only one way, i.e., 2034370816 + 185940496 = 45104^2 + 13636^2 .

It is a super-2 number, since 2×2220311312² = 9859564644390322688, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 69384713 + ... + 69384744.

Almost surely, 2^2220311312 is an apocalyptic number.

It is an amenable number.

2220311312 is a deficient number, since it is larger than the sum of its proper divisors (2081541886).

2220311312 is a wasteful number, since it uses less digits than its factorization.

2220311312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138769465 (or 138769459 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2220311312 is about 47120.1794563646. The cubic root of 2220311312 is about 1304.5817250928.

Adding to 2220311312 its reverse (2131130222), we get a palindrome (4351441534).

The spelling of 2220311312 in words is "two billion, two hundred twenty million, three hundred eleven thousand, three hundred twelve".