12055223620 has 48 divisors (see below), whose sum is σ = 27719467776. Its totient is φ = 4367520000.

The previous prime is 12055223573. The next prime is 12055223629. The reversal of 12055223620 is 2632255021.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12055223629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41481 + ... + 160720.

It is an arithmetic number, because the mean of its divisors is an integer number (577488912).

Almost surely, 2^12055223620 is an apocalyptic number.

12055223620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12055223620 is an abundant number, since it is smaller than the sum of its proper divisors (15664244156).

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

12055223620 is a wasteful number, since it uses less digits than its factorization.

12055223620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202492 (or 202490 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 12055223620 its reverse (2632255021), we get a palindrome (14687478641).

The spelling of 12055223620 in words is "twelve billion, fifty-five million, two hundred twenty-three thousand, six hundred twenty".