11211101201021 has 8 divisors (see below), whose sum is σ = 11290095632088. Its totient is φ = 11132294184000.

The previous prime is 11211101200979. The next prime is 11211101201093. The reversal of 11211101201021 is 12010210111211.

It can be written as a sum of positive squares in 4 ways, for example, as 104578504996 + 11106522696025 = 323386^2 + 3332645^2 .

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 11211101201021 - 2¹⁰ = 11211101199997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11211101200987 and 11211101201005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211101201621) 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, 46733450 + ... + 46972731.

It is an arithmetic number, because the mean of its divisors is an integer number (1411261954011).

Almost surely, 2^{11211101201021} is an apocalyptic number.

It is an amenable number.

11211101201021 is a deficient number, since it is larger than the sum of its proper divisors (78994431067).

11211101201021 is an equidigital number, since it uses as much as digits as its factorization.

11211101201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93707023.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11211101201021 its reverse (12010210111211), we get a palindrome (23221311312232).

The spelling of 11211101201021 in words is "eleven trillion, two hundred eleven billion, one hundred one million, two hundred one thousand, twenty-one".