11212020122201 has 4 divisors (see below), whose sum is σ = 11213643412752. Its totient is φ = 11210396831652.

The previous prime is 11212020122117. The next prime is 11212020122207. The reversal of 11212020122201 is 10222102021211.

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 11212020122201 - 2¹⁰ = 11212020121177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11212020122201.

It is not an unprimeable number, because it can be changed into a prime (11212020122207) 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, 811634915 + ... + 811648728.

It is an arithmetic number, because the mean of its divisors is an integer number (2803410853188).

Almost surely, 2^{11212020122201} is an apocalyptic number.

It is an amenable number.

11212020122201 is a deficient number, since it is larger than the sum of its proper divisors (1623290551).

11212020122201 is an equidigital number, since it uses as much as digits as its factorization.

11212020122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623290550.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11212020122201 its reverse (10222102021211), we get a palindrome (21434122143412).

The spelling of 11212020122201 in words is "eleven trillion, two hundred twelve billion, twenty million, one hundred twenty-two thousand, two hundred one".