11001223010020 has 24 divisors (see below), whose sum is σ = 23105576398968. Its totient is φ = 4399916236800.

The previous prime is 11001223009951. The next prime is 11001223010021. The reversal of 11001223010020 is 2001032210011.

It can be written as a sum of positive squares in 4 ways, for example, as 4385740654656 + 6615482355364 = 2094216^2 + 2572058^2 .

It is not an unprimeable number, because it can be changed into a prime (11001223010021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35652991 + ... + 35960230.

It is an arithmetic number, because the mean of its divisors is an integer number (962732349957).

Almost surely, 2^{11001223010020} is an apocalyptic number.

11001223010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11001223010020 is an abundant number, since it is smaller than the sum of its proper divisors (12104353388948).

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

11001223010020 is a wasteful number, since it uses less digits than its factorization.

11001223010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71620911 (or 71620909 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 11001223010020 its reverse (2001032210011), we get a palindrome (13002255220031).

The spelling of 11001223010020 in words is "eleven trillion, one billion, two hundred twenty-three million, ten thousand, twenty".