2124220400 has 30 divisors (see below), whose sum is σ = 5103440472. Its totient is φ = 849688000.

The previous prime is 2124220367. The next prime is 2124220421. The reversal of 2124220400 is 40224212.

It is a happy number.

It is a congruent number.

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, 2654876 + ... + 2655675.

Almost surely, 2^2124220400 is an apocalyptic number.

2124220400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2124220400 is an abundant number, since it is smaller than the sum of its proper divisors (2979220072).

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

2124220400 is a wasteful number, since it uses less digits than its factorization.

2124220400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5310569 (or 5310558 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 2124220400 is about 46089.2655615166. The cubic root of 2124220400 is about 1285.4835548336.

Adding to 2124220400 its reverse (40224212), we get a palindrome (2164444612).

The spelling of 2124220400 in words is "two billion, one hundred twenty-four million, two hundred twenty thousand, four hundred".