11212020220201 has 4 divisors (see below), whose sum is σ = 11802126547600. Its totient is φ = 10621913892804.

The previous prime is 11212020220133. The next prime is 11212020220211. The reversal of 11212020220201 is 10202202021211.

It is a happy number.

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 11212020220201 - 2⁷ = 11212020220073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11212020220211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295053163671 + ... + 295053163708.

It is an arithmetic number, because the mean of its divisors is an integer number (2950531636900).

Almost surely, 2^{11212020220201} is an apocalyptic number.

It is an amenable number.

11212020220201 is a deficient number, since it is larger than the sum of its proper divisors (590106327399).

11212020220201 is an equidigital number, since it uses as much as digits as its factorization.

11212020220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590106327398.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11212020220201 its reverse (10202202021211), we get a palindrome (21414222241412).

The spelling of 11212020220201 in words is "eleven trillion, two hundred twelve billion, twenty million, two hundred twenty thousand, two hundred one".