10011255015220 has 48 divisors (see below), whose sum is σ = 21751334514000. Its totient is φ = 3865927546880.

The previous prime is 10011255015211. The next prime is 10011255015221. The reversal of 10011255015220 is 2251055211001.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1582533808144 + 8428721207076 = 1257988^2 + 2903226^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10011255015221) 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, 3524700 + ... + 5696140.

It is an arithmetic number, because the mean of its divisors is an integer number (453152802375).

Almost surely, 2^{10011255015220} is an apocalyptic number.

10011255015220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10011255015220 is an abundant number, since it is smaller than the sum of its proper divisors (11740079498780).

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

10011255015220 is a wasteful number, since it uses less digits than its factorization.

10011255015220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2179428 (or 2179426 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 25.

The spelling of 10011255015220 in words is "ten trillion, eleven billion, two hundred fifty-five million, fifteen thousand, two hundred twenty".