100011110120021 has 8 divisors (see below), whose sum is σ = 102450982370688. Its totient is φ = 97571265340000.

The previous prime is 100011110119969. The next prime is 100011110120059. The reversal of 100011110120021 is 120021011110001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100011110120021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100011110119984 and 100011110120011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100011110123021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 600326 + ... + 14155656.

It is an arithmetic number, because the mean of its divisors is an integer number (12806372796336).

Almost surely, 2^{100011110120021} is an apocalyptic number.

It is an amenable number.

100011110120021 is a deficient number, since it is larger than the sum of its proper divisors (2439872250667).

100011110120021 is a wasteful number, since it uses less digits than its factorization.

100011110120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13735323.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 100011110120021 its reverse (120021011110001), we get a palindrome (220032121230022).

The spelling of 100011110120021 in words is "one hundred trillion, eleven billion, one hundred ten million, one hundred twenty thousand, twenty-one".