12220455510 has 24 divisors (see below), whose sum is σ = 31773184560. Its totient is φ = 3258788112.

The previous prime is 12220455503. The next prime is 12220455581. The reversal of 12220455510 is 1555402221.

12220455510 is a `hidden beast` number, since 122 + 20 + 4 + 5 + 5 + 510 = 666.

12220455510 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67891330 + ... + 67891509.

It is an arithmetic number, because the mean of its divisors is an integer number (1323882690).

Almost surely, 2^12220455510 is an apocalyptic number.

12220455510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12220455510 is an abundant number, since it is smaller than the sum of its proper divisors (19552729050).

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

12220455510 is a wasteful number, since it uses less digits than its factorization.

12220455510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135782852 (or 135782849 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

Adding to 12220455510 its reverse (1555402221), we get a palindrome (13775857731).

The spelling of 12220455510 in words is "twelve billion, two hundred twenty million, four hundred fifty-five thousand, five hundred ten".