11212003011021 has 4 divisors (see below), whose sum is σ = 14949337348032. Its totient is φ = 7474668674012.

The previous prime is 11212003010959. The next prime is 11212003011047. The reversal of 11212003011021 is 12011030021211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11212003011021 - 2¹⁴ = 11212002994637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212003011091) 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, 1868667168501 + ... + 1868667168506.

It is an arithmetic number, because the mean of its divisors is an integer number (3737334337008).

Almost surely, 2^{11212003011021} is an apocalyptic number.

It is an amenable number.

11212003011021 is a deficient number, since it is larger than the sum of its proper divisors (3737334337011).

11212003011021 is an equidigital number, since it uses as much as digits as its factorization.

11212003011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3737334337010.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 11212003011021 its reverse (12011030021211), we get a palindrome (23223033032232).

The spelling of 11212003011021 in words is "eleven trillion, two hundred twelve billion, three million, eleven thousand, twenty-one".