2211054550221 has 12 divisors (see below), whose sum is σ = 3240443583776. Its totient is φ = 1340033060520.

The previous prime is 2211054550207. The next prime is 2211054550241. The reversal of 2211054550221 is 1220554501122.

It is not a de Polignac number, because 2211054550221 - 2¹¹ = 2211054548173 is a prime.

It is a super-2 number, since 2×2211054550221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211054550241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3045529321 + ... + 3045530046.

Almost surely, 2^{2211054550221} is an apocalyptic number.

It is an amenable number.

2211054550221 is a deficient number, since it is larger than the sum of its proper divisors (1029389033555).

2211054550221 is a wasteful number, since it uses less digits than its factorization.

2211054550221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6091059392 (or 6091059381 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

The spelling of 2211054550221 in words is "two trillion, two hundred eleven billion, fifty-four million, five hundred fifty thousand, two hundred twenty-one".