12250550020 has 12 divisors (see below), whose sum is σ = 25726155084. Its totient is φ = 4900220000.

The previous prime is 12250549951. The next prime is 12250550041. The reversal of 12250550020 is 2005505221.

It can be written as a sum of positive squares in 2 ways, for example, as 2523856644 + 9726693376 = 50238^2 + 98624^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12250549973 and 12250550000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306263731 + ... + 306263770.

It is an arithmetic number, because the mean of its divisors is an integer number (2143846257).

Almost surely, 2^12250550020 is an apocalyptic number.

12250550020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12250550020 is an abundant number, since it is smaller than the sum of its proper divisors (13475605064).

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

12250550020 is a wasteful number, since it uses less digits than its factorization.

12250550020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612527510 (or 612527508 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The spelling of 12250550020 in words is "twelve billion, two hundred fifty million, five hundred fifty thousand, twenty".