11100001211020 has 24 divisors (see below), whose sum is σ = 23311313650800. Its totient is φ = 4439750749632.

The previous prime is 11100001210981. The next prime is 11100001211041. The reversal of 11100001211020 is 2011210000111.

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 = 11100001210988 and 11100001211006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15243750 + ... + 15955309.

It is an arithmetic number, because the mean of its divisors is an integer number (971304735450).

Almost surely, 2^{11100001211020} is an apocalyptic number.

11100001211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11100001211020 is an abundant number, since it is smaller than the sum of its proper divisors (12211312439780).

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

11100001211020 is a wasteful number, since it uses less digits than its factorization.

11100001211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31216857 (or 31216855 counting only the distinct ones).

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

Adding to 11100001211020 its reverse (2011210000111), we get a palindrome (13111211211131).

The spelling of 11100001211020 in words is "eleven trillion, one hundred billion, one million, two hundred eleven thousand, twenty".