2220220512 has 72 divisors (see below), whose sum is σ = 6531492240. Its totient is φ = 714551040.

The previous prime is 2220220501. The next prime is 2220220529. The reversal of 2220220512 is 2150220222.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 124564 + ... + 141267.

It is an arithmetic number, because the mean of its divisors is an integer number (90715170).

Almost surely, 2^2220220512 is an apocalyptic number.

It is an amenable number.

2220220512 is an abundant number, since it is smaller than the sum of its proper divisors (4311271728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2220220512 is a wasteful number, since it uses less digits than its factorization.

2220220512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265876 (or 265865 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 2220220512 is about 47119.2159527299. The cubic root of 2220220512 is about 1304.5639411549.

Adding to 2220220512 its reverse (2150220222), we get a palindrome (4370440734).

The spelling of 2220220512 in words is "two billion, two hundred twenty million, two hundred twenty thousand, five hundred twelve".