2021111202101 has 16 divisors (see below), whose sum is σ = 2056743014400. Its totient is φ = 1985838307200.

The previous prime is 2021111202091. The next prime is 2021111202107. The reversal of 2021111202101 is 1012021111202.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021111202101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021111202107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7566641 + ... + 7829193.

It is an arithmetic number, because the mean of its divisors is an integer number (128546438400).

Almost surely, 2^{2021111202101} is an apocalyptic number.

It is an amenable number.

2021111202101 is a deficient number, since it is larger than the sum of its proper divisors (35631812299).

2021111202101 is a wasteful number, since it uses less digits than its factorization.

2021111202101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263236.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2021111202101 its reverse (1012021111202), we get a palindrome (3033132313303).

It can be divided in two parts, 2021111202 and 101, that multiplied together give a palindrome (204132231402).

The spelling of 2021111202101 in words is "two trillion, twenty-one billion, one hundred eleven million, two hundred two thousand, one hundred one".