20122004 has 24 divisors (see below), whose sum is σ = 40360320. Its totient is φ = 8598816.

The previous prime is 20121989. The next prime is 20122031. The reversal of 20122004 is 40022102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11474 + ... + 13110.

It is an arithmetic number, because the mean of its divisors is an integer number (1681680).

Almost surely, 2^20122004 is an apocalyptic number.

It is an amenable number.

20122004 is an abundant number, since it is smaller than the sum of its proper divisors (20238316).

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

20122004 is a wasteful number, since it uses less digits than its factorization.

20122004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2087 (or 2085 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 20122004 is about 4485.7556776980. The cubic root of 20122004 is about 271.9925927914.

Adding to 20122004 its reverse (40022102), we get a palindrome (60144106).

The spelling of 20122004 in words is "twenty million, one hundred twenty-two thousand, four".