63120222 has 48 divisors (see below), whose sum is σ = 154732032. Its totient is φ = 19125720.

The previous prime is 63120217. The next prime is 63120227. The reversal of 63120222 is 22202136.

It is an interprime number because it is at equal distance from previous prime (63120217) and next prime (63120227).

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

It is a junction number, because it is equal to n+sod(n) for n = 63120195 and 63120204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63120227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 558 + ... + 11249.

It is an arithmetic number, because the mean of its divisors is an integer number (3223584).

Almost surely, 2^63120222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63120222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77366016).

63120222 is an abundant number, since it is smaller than the sum of its proper divisors (91611810).

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

63120222 is a wasteful number, since it uses less digits than its factorization.

63120222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11835 (or 11823 counting only the distinct ones).

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

The square root of 63120222 is about 7944.8235977899. The cubic root of 63120222 is about 398.1586658948.

Adding to 63120222 its reverse (22202136), we get a palindrome (85322358).

The spelling of 63120222 in words is "sixty-three million, one hundred twenty thousand, two hundred twenty-two".