2129559212 has 24 divisors (see below), whose sum is σ = 4121220432. Its totient is φ = 954720000.

The previous prime is 2129559193. The next prime is 2129559217.

It is a happy number.

2129559212 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (2129559217) 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, 328289 + ... + 334712.

It is an arithmetic number, because the mean of its divisors is an integer number (171717518).

Almost surely, 2^2129559212 is an apocalyptic number.

2129559212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2129559212 is a deficient number, since it is larger than the sum of its proper divisors (1991661220).

2129559212 is a wasteful number, since it uses less digits than its factorization.

2129559212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663089 (or 663087 counting only the distinct ones).

The product of its digits is 32400, while the sum is 38.

The square root of 2129559212 is about 46147.1473874605. The cubic root of 2129559212 is about 1286.5595909296.

The spelling of 2129559212 in words is "two billion, one hundred twenty-nine million, five hundred fifty-nine thousand, two hundred twelve".