2100101112021 has 8 divisors (see below), whose sum is σ = 3054692526624. Its totient is φ = 1272788552720.

The previous prime is 2100101112007. The next prime is 2100101112047. The reversal of 2100101112021 is 1202111010012.

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

It is a cyclic number.

It is not a de Polignac number, because 2100101112021 - 2²³ = 2100092723413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2100101111988 and 2100101112006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100101114021) 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, 31819713786 + ... + 31819713851.

It is an arithmetic number, because the mean of its divisors is an integer number (381836565828).

Almost surely, 2^{2100101112021} is an apocalyptic number.

It is an amenable number.

2100101112021 is a deficient number, since it is larger than the sum of its proper divisors (954591414603).

2100101112021 is a wasteful number, since it uses less digits than its factorization.

2100101112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63639427651.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 2100101112021 its reverse (1202111010012), we get a palindrome (3302212122033).

It can be divided in two parts, 2100101 and 112021, that added together give a palindrome (2212122).

The spelling of 2100101112021 in words is "two trillion, one hundred billion, one hundred one million, one hundred twelve thousand, twenty-one".