63220212 has 72 divisors (see below), whose sum is σ = 184609152. Its totient is φ = 18028800.

The previous prime is 63220193. The next prime is 63220247. The reversal of 63220212 is 21202236.

63220212 is a `hidden beast` number, since 632 + 20 + 2 + 12 = 666.

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 polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2037 + ... + 11427.

It is an arithmetic number, because the mean of its divisors is an integer number (2564016).

Almost surely, 2^63220212 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 63220212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92304576).

63220212 is an abundant number, since it is smaller than the sum of its proper divisors (121388940).

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

63220212 is a wasteful number, since it uses less digits than its factorization.

63220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9429 (or 9424 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 63220212 is about 7951.1138842303. The cubic root of 63220212 is about 398.3687986645.

Adding to 63220212 its reverse (21202236), we get a palindrome (84422448).

The spelling of 63220212 in words is "sixty-three million, two hundred twenty thousand, two hundred twelve".