2757221212 has 12 divisors (see below), whose sum is σ = 4827450600. Its totient is φ = 1377949616.

The previous prime is 2757221191. The next prime is 2757221219. The reversal of 2757221212 is 2121227572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2757221219) 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, 155803 + ... + 172594.

It is an arithmetic number, because the mean of its divisors is an integer number (402287550).

Almost surely, 2^2757221212 is an apocalyptic number.

It is an amenable number.

2757221212 is a deficient number, since it is larger than the sum of its proper divisors (2070229388).

2757221212 is a wasteful number, since it uses less digits than its factorization.

2757221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330500 (or 330498 counting only the distinct ones).

The product of its digits is 7840, while the sum is 31.

The square root of 2757221212 is about 52509.2488234216. The cubic root of 2757221212 is about 1402.2449038088.

Adding to 2757221212 its reverse (2121227572), we get a palindrome (4878448784).

It can be divided in two parts, 27572 and 21212, that added together give a palindrome (48784).

The spelling of 2757221212 in words is "two billion, seven hundred fifty-seven million, two hundred twenty-one thousand, two hundred twelve".