101111021110020 has 48 divisors (see below), whose sum is σ = 287336394330048. Its totient is φ = 26560507036800.

The previous prime is 101111021110009. The next prime is 101111021110039. The reversal of 101111021110020 is 20011120111101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 101111021109978 and 101111021110005.

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, 12575993631 + ... + 12576001670.

It is an arithmetic number, because the mean of its divisors is an integer number (5986174881876).

Almost surely, 2^{101111021110020} is an apocalyptic number.

101111021110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101111021110020 is an abundant number, since it is smaller than the sum of its proper divisors (186225373220028).

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

101111021110020 is a wasteful number, since it uses less digits than its factorization.

101111021110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25151995380 (or 25151995378 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 101111021110020 its reverse (20011120111101), we get a palindrome (121122141221121).

The spelling of 101111021110020 in words is "one hundred one trillion, one hundred eleven billion, twenty-one million, one hundred ten thousand, twenty".