100111012211020 has 48 divisors (see below), whose sum is σ = 210742763212800. Its totient is φ = 39947350343360.

The previous prime is 100111012211011. The next prime is 100111012211051. The reversal of 100111012211020 is 20112210111001.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83180301 + ... + 84375259.

It is an arithmetic number, because the mean of its divisors is an integer number (4390474233600).

Almost surely, 2^{100111012211020} is an apocalyptic number.

100111012211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100111012211020 is an abundant number, since it is smaller than the sum of its proper divisors (110631751001780).

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

100111012211020 is a wasteful number, since it uses less digits than its factorization.

100111012211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205118 (or 1205116 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 100111012211020 its reverse (20112210111001), we get a palindrome (120223222322021).

The spelling of 100111012211020 in words is "one hundred trillion, one hundred eleven billion, twelve million, two hundred eleven thousand, twenty".