20202212004 has 144 divisors (see below), whose sum is σ = 56892386880. Its totient is φ = 5542318080.

The previous prime is 20202211999. The next prime is 20202212077. The reversal of 20202212004 is 40021220202.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 639624 + ... + 670464.

It is an arithmetic number, because the mean of its divisors is an integer number (395086020).

Almost surely, 2^20202212004 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 20202212004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28446193440).

20202212004 is an abundant number, since it is smaller than the sum of its proper divisors (36690174876).

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

20202212004 is a wasteful number, since it uses less digits than its factorization.

20202212004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30910 (or 30895 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 20202212004 its reverse (40021220202), we get a palindrome (60223432206).

The spelling of 20202212004 in words is "twenty billion, two hundred two million, two hundred twelve thousand, four".