2126556212 has 24 divisors (see below), whose sum is σ = 4099993632. Its totient is φ = 957044000.

The previous prime is 2126556181. The next prime is 2126556217.

2126556212 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126556217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234818 + ... + 243705.

It is an arithmetic number, because the mean of its divisors is an integer number (170833068).

Almost surely, 2^2126556212 is an apocalyptic number.

2126556212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2126556212 is a deficient number, since it is larger than the sum of its proper divisors (1973437420).

2126556212 is a wasteful number, since it uses less digits than its factorization.

2126556212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478639 (or 478637 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The square root of 2126556212 is about 46114.5986863162. The cubic root of 2126556212 is about 1285.9545586908.

It can be divided in two parts, 21265 and 56212, that added together give a palindrome (77477).

The spelling of 2126556212 in words is "two billion, one hundred twenty-six million, five hundred fifty-six thousand, two hundred twelve".