2133021200 has 30 divisors (see below), whose sum is σ = 5124584394. Its totient is φ = 853208320.

The previous prime is 2133021193. The next prime is 2133021211. The reversal of 2133021200 is 21203312.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 426670336 + 1706350864 = 20656^2 + 41308^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2665877 + ... + 2666676.

Almost surely, 2^2133021200 is an apocalyptic number.

2133021200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2133021200 is an abundant number, since it is smaller than the sum of its proper divisors (2991563194).

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

2133021200 is a wasteful number, since it uses less digits than its factorization.

2133021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5332571 (or 5332560 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2133021200 is about 46184.6424691152. The cubic root of 2133021200 is about 1287.2563927828.

Adding to 2133021200 its reverse (21203312), we get a palindrome (2154224512).

The spelling of 2133021200 in words is "two billion, one hundred thirty-three million, twenty-one thousand, two hundred".