2021101220011 has 8 divisors (see below), whose sum is σ = 2026406113904. Its totient is φ = 2015797402080.

The previous prime is 2021101219997. The next prime is 2021101220053. The reversal of 2021101220011 is 1100221011202.

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 2021101220011 - 2⁹ = 2021101219499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2021101219973 and 2021101220000.

It is not an unprimeable number, because it can be changed into a prime (2021101260011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3564301 + ... + 4092241.

It is an arithmetic number, because the mean of its divisors is an integer number (253300764238).

Almost surely, 2^{2021101220011} is an apocalyptic number.

2021101220011 is a deficient number, since it is larger than the sum of its proper divisors (5304893893).

2021101220011 is an equidigital number, since it uses as much as digits as its factorization.

2021101220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537981.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2021101220011 its reverse (1100221011202), we get a palindrome (3121322231213).

The spelling of 2021101220011 in words is "two trillion, twenty-one billion, one hundred one million, two hundred twenty thousand, eleven".