220212312 has 64 divisors (see below), whose sum is σ = 583480800. Its totient is φ = 69135360.

The previous prime is 220212301. The next prime is 220212323. The reversal of 220212312 is 213212022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (220212301) and next prime (220212323).

It is a junction number, because it is equal to n+sod(n) for n = 220212291 and 220212300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24678 + ... + 32394.

Almost surely, 2^220212312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220212312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291740400).

220212312 is an abundant number, since it is smaller than the sum of its proper divisors (363268488).

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

220212312 is a wasteful number, since it uses less digits than its factorization.

220212312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7796 (or 7792 counting only the distinct ones).

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

The square root of 220212312 is about 14839.5522843514. The cubic root of 220212312 is about 603.8752062984.

Adding to 220212312 its reverse (213212022), we get a palindrome (433424334).

The spelling of 220212312 in words is "two hundred twenty million, two hundred twelve thousand, three hundred twelve".