2220012312 has 32 divisors (see below), whose sum is σ = 6342892800. Its totient is φ = 634289184.

The previous prime is 2220012257. The next prime is 2220012317. The reversal of 2220012312 is 2132100222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2220012291 and 2220012300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220012317) 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, 6607012 + ... + 6607347.

It is an arithmetic number, because the mean of its divisors is an integer number (198215400).

Almost surely, 2^2220012312 is an apocalyptic number.

It is an amenable number.

2220012312 is an abundant number, since it is smaller than the sum of its proper divisors (4122880488).

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

2220012312 is a wasteful number, since it uses less digits than its factorization.

2220012312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13214375 (or 13214371 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2220012312 is about 47117.0066112014. The cubic root of 2220012312 is about 1304.5231616165.

Adding to 2220012312 its reverse (2132100222), we get a palindrome (4352112534).

The spelling of 2220012312 in words is "two billion, two hundred twenty million, twelve thousand, three hundred twelve".