2129889212 has 48 divisors (see below), whose sum is σ = 4145027040. Its totient is φ = 949536000.

The previous prime is 2129889211. The next prime is 2129889221.

2129889212 is nontrivially palindromic in base 10.

It is a super-3 number, since 3×2129889212³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129889211) 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, 482198 + ... + 486594.

It is an arithmetic number, because the mean of its divisors is an integer number (86354730).

Almost surely, 2^2129889212 is an apocalyptic number.

2129889212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2129889212 is a deficient number, since it is larger than the sum of its proper divisors (2015137828).

2129889212 is a wasteful number, since it uses less digits than its factorization.

2129889212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4622 (or 4620 counting only the distinct ones).

The product of its digits is 82944, while the sum is 44.

The square root of 2129889212 is about 46150.7227679047. The cubic root of 2129889212 is about 1286.6260432943.

The spelling of 2129889212 in words is "two billion, one hundred twenty-nine million, eight hundred eighty-nine thousand, two hundred twelve".