2204121000 has 64 divisors (see below), whose sum is σ = 6876866880. Its totient is φ = 587764800.

The previous prime is 2204120993. The next prime is 2204121001. The reversal of 2204121000 is 1214022.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (2204121001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 364354 + ... + 370353.

It is an arithmetic number, because the mean of its divisors is an integer number (107451045).

Almost surely, 2^2204121000 is an apocalyptic number.

2204121000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2204121000 is an abundant number, since it is smaller than the sum of its proper divisors (4672745880).

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

2204121000 is a wasteful number, since it uses less digits than its factorization.

2204121000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734731 (or 734717 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2204121000 is about 46948.0670528617. The cubic root of 2204121000 is about 1301.4030217367.

Adding to 2204121000 its reverse (1214022), we get a palindrome (2205335022).

The spelling of 2204121000 in words is "two billion, two hundred four million, one hundred twenty-one thousand".