2721212104 has 32 divisors (see below), whose sum is σ = 5560974720. Its totient is φ = 1240808256.

The previous prime is 2721212069. The next prime is 2721212119. The reversal of 2721212104 is 4012121272.

It is a super-2 number, since 2×2721212104² = 14809990629912213632, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148992 + ... + 166255.

It is an arithmetic number, because the mean of its divisors is an integer number (173780460).

Almost surely, 2^2721212104 is an apocalyptic number.

It is an amenable number.

2721212104 is an abundant number, since it is smaller than the sum of its proper divisors (2839762616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2721212104 is a wasteful number, since it uses less digits than its factorization.

2721212104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315349 (or 315345 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 2721212104 is about 52165.2384639426. The cubic root of 2721212104 is about 1396.1137295379.

Adding to 2721212104 its reverse (4012121272), we get a palindrome (6733333376).

The spelling of 2721212104 in words is "two billion, seven hundred twenty-one million, two hundred twelve thousand, one hundred four".