10221219980 has 24 divisors (see below), whose sum is σ = 21628419120. Its totient is φ = 4057277120.

The previous prime is 10221219979. The next prime is 10221219997. The reversal of 10221219980 is 8991212201.

It is a self number, because there is not a number n which added to its sum of digits gives 10221219980.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1947995 + ... + 1953234.

It is an arithmetic number, because the mean of its divisors is an integer number (901184130).

Almost surely, 2^10221219980 is an apocalyptic number.

10221219980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221219980 is an abundant number, since it is smaller than the sum of its proper divisors (11407199140).

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

10221219980 is a wasteful number, since it uses less digits than its factorization.

10221219980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3901369 (or 3901367 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 35.

The spelling of 10221219980 in words is "ten billion, two hundred twenty-one million, two hundred nineteen thousand, nine hundred eighty".