2122221200 has 60 divisors (see below), whose sum is σ = 5562160368. Its totient is φ = 771715200.

The previous prime is 2122221151. The next prime is 2122221217. The reversal of 2122221200 is 21222212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 236762 + ... + 245561.

Almost surely, 2^2122221200 is an apocalyptic number.

2122221200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122221200 is an abundant number, since it is smaller than the sum of its proper divisors (3439939168).

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

2122221200 is a wasteful number, since it uses less digits than its factorization.

2122221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482352 (or 482341 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2122221200 is about 46067.5721088056. The cubic root of 2122221200 is about 1285.0801526611.

Adding to 2122221200 its reverse (21222212), we get a palindrome (2143443412).

2122221200 divided by its reverse (21222212) gives a square (100 = 10²).

It can be divided in two parts, 2122 and 221200, that added together give a palindrome (223322).

The spelling of 2122221200 in words is "two billion, one hundred twenty-two million, two hundred twenty-one thousand, two hundred".