11202012011021 has 4 divisors (see below), whose sum is σ = 12063705242652. Its totient is φ = 10340318779392.

The previous prime is 11202012010967. The next prime is 11202012011081. The reversal of 11202012011021 is 12011021020211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6014486478025 + 5187525532996 = 2452445^2 + 2277614^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11202012011021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11202012010987 and 11202012011005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11202012011081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430846615796 + ... + 430846615821.

It is an arithmetic number, because the mean of its divisors is an integer number (3015926310663).

Almost surely, 2^{11202012011021} is an apocalyptic number.

It is an amenable number.

11202012011021 is a deficient number, since it is larger than the sum of its proper divisors (861693231631).

11202012011021 is an equidigital number, since it uses as much as digits as its factorization.

11202012011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861693231630.

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

Adding to 11202012011021 its reverse (12011021020211), we get a palindrome (23213033031232).

The spelling of 11202012011021 in words is "eleven trillion, two hundred two billion, twelve million, eleven thousand, twenty-one".