12019948900 has 18 divisors (see below), whose sum is σ = 26083289330. Its totient is φ = 4807979520.

The previous prime is 12019948867. The next prime is 12019948901. The reversal of 12019948900 is 984991021.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2002741504 + 10017207396 = 44752^2 + 100086^2 .

It is a super-2 number, since 2×12019948900² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12019948901) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60099645 + ... + 60099844.

Almost surely, 2^12019948900 is an apocalyptic number.

12019948900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12019948900 is an abundant number, since it is smaller than the sum of its proper divisors (14063340430).

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

12019948900 is a wasteful number, since it uses less digits than its factorization.

12019948900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120199503 (or 120199496 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 43.

The spelling of 12019948900 in words is "twelve billion, nineteen million, nine hundred forty-eight thousand, nine hundred".