2134201212 has 144 divisors (see below), whose sum is σ = 6428298240. Its totient is φ = 588470400.

The previous prime is 2134201193. The next prime is 2134201213. The reversal of 2134201212 is 2121024312.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2134201213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 362589 + ... + 368427.

It is an arithmetic number, because the mean of its divisors is an integer number (44640960).

Almost surely, 2^2134201212 is an apocalyptic number.

2134201212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2134201212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3214149120).

2134201212 is an abundant number, since it is smaller than the sum of its proper divisors (4294097028).

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

2134201212 is a wasteful number, since it uses less digits than its factorization.

2134201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5944 (or 5939 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2134201212 is about 46197.4156420032. The cubic root of 2134201212 is about 1287.4937240653.

Adding to 2134201212 its reverse (2121024312), we get a palindrome (4255225524).

Subtracting from 2134201212 its reverse (2121024312), we obtain a square (13176900 = 3630²).

The spelling of 2134201212 in words is "two billion, one hundred thirty-four million, two hundred one thousand, two hundred twelve".