12210019980 has 48 divisors (see below), whose sum is σ = 35112063840. Its totient is φ = 3168004608.

The previous prime is 12210019967. The next prime is 12210019981. The reversal of 12210019980 is 8991001221.

It is not an unprimeable number, because it can be changed into a prime (12210019981) 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, 2747785 + ... + 2752224.

It is an arithmetic number, because the mean of its divisors is an integer number (731501330).

Almost surely, 2^12210019980 is an apocalyptic number.

12210019980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12210019980 is an abundant number, since it is smaller than the sum of its proper divisors (22902043860).

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

12210019980 is a wasteful number, since it uses less digits than its factorization.

12210019980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5500058 (or 5500056 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 33.

The spelling of 12210019980 in words is "twelve billion, two hundred ten million, nineteen thousand, nine hundred eighty".