10011011210020 has 12 divisors (see below), whose sum is σ = 21023123541084. Its totient is φ = 4004404484000.

The previous prime is 10011011210003. The next prime is 10011011210023. The reversal of 10011011210020 is 2001211011001.

It can be written as a sum of positive squares in 2 ways, for example, as 4241820346624 + 5769190863396 = 2059568^2 + 2401914^2 .

It is a super-2 number, since 2×10011011210020² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 10011011209979 and 10011011210006.

It is not an unprimeable number, because it can be changed into a prime (10011011210023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250275280231 + ... + 250275280270.

It is an arithmetic number, because the mean of its divisors is an integer number (1751926961757).

Almost surely, 2^{10011011210020} is an apocalyptic number.

10011011210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10011011210020 is an abundant number, since it is smaller than the sum of its proper divisors (11012112331064).

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

10011011210020 is a wasteful number, since it uses less digits than its factorization.

10011011210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500550560510 (or 500550560508 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10011011210020 its reverse (2001211011001), we get a palindrome (12012222221021).

The spelling of 10011011210020 in words is "ten trillion, eleven billion, eleven million, two hundred ten thousand, twenty".