2201220021211 has 4 divisors (see below), whose sum is σ = 2201234515000. Its totient is φ = 2201205527424.

The previous prime is 2201220021151. The next prime is 2201220021257. The reversal of 2201220021211 is 1121200221022.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2201220021211 - 2²³ = 2201211632603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2201220061211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7016646 + ... + 7323643.

It is an arithmetic number, because the mean of its divisors is an integer number (550308628750).

Almost surely, 2^{2201220021211} is an apocalyptic number.

2201220021211 is a deficient number, since it is larger than the sum of its proper divisors (14493789).

2201220021211 is a wasteful number, since it uses less digits than its factorization.

2201220021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14493788.

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

Adding to 2201220021211 its reverse (1121200221022), we get a palindrome (3322420242233).

The spelling of 2201220021211 in words is "two trillion, two hundred one billion, two hundred twenty million, twenty-one thousand, two hundred eleven".