2122401204 has 240 divisors, whose sum is σ = 6965836416. Its totient is φ = 547430400.

The previous prime is 2122401167. The next prime is 2122401247. The reversal of 2122401204 is 4021042212.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 6012292 + ... + 6012644.

Almost surely, 2^2122401204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2122401204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3482918208).

2122401204 is an abundant number, since it is smaller than the sum of its proper divisors (4843435212).

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

2122401204 is a wasteful number, since it uses less digits than its factorization.

2122401204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628 (or 617 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2122401204 is about 46069.5257626991. The cubic root of 2122401204 is about 1285.1164845678.

Adding to 2122401204 its reverse (4021042212), we get a palindrome (6143443416).

It can be divided in two parts, 212240 and 1204, that added together give a square (213444 = 462²).

The spelling of 2122401204 in words is "two billion, one hundred twenty-two million, four hundred one thousand, two hundred four".