2771412221 has 16 divisors (see below), whose sum is σ = 2920315200. Its totient is φ = 2626743168.

The previous prime is 2771412211. The next prime is 2771412229. The reversal of 2771412221 is 1222141772.

It is a happy number.

2771412221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2771412221 - 2¹⁸ = 2771150077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2771412229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 648590 + ... + 652848.

It is an arithmetic number, because the mean of its divisors is an integer number (182519700).

Almost surely, 2^2771412221 is an apocalyptic number.

It is an amenable number.

2771412221 is a deficient number, since it is larger than the sum of its proper divisors (148902979).

2771412221 is a wasteful number, since it uses less digits than its factorization.

2771412221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4748.

The product of its digits is 3136, while the sum is 29.

The square root of 2771412221 is about 52644.2040589465. The cubic root of 2771412221 is about 1404.6465038588.

Adding to 2771412221 its reverse (1222141772), we get a palindrome (3993553993).

The spelling of 2771412221 in words is "two billion, seven hundred seventy-one million, four hundred twelve thousand, two hundred twenty-one".