220015212 has 48 divisors (see below), whose sum is σ = 542290560. Its totient is φ = 69234048.

The previous prime is 220015183. The next prime is 220015223. The reversal of 220015212 is 212510022.

220015212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×220015212² = 96813387022809888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220015191 and 220015200.

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, 69823 + ... + 72905.

It is an arithmetic number, because the mean of its divisors is an integer number (11297720).

Almost surely, 2^220015212 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 220015212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271145280).

220015212 is an abundant number, since it is smaller than the sum of its proper divisors (322275348).

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

220015212 is a wasteful number, since it uses less digits than its factorization.

220015212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3422 (or 3420 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 220015212 is about 14832.9097617426. The cubic root of 220015212 is about 603.6949872932.

Adding to 220015212 its reverse (212510022), we get a palindrome (432525234).

The spelling of 220015212 in words is "two hundred twenty million, fifteen thousand, two hundred twelve".