20001020322 has 16 divisors (see below), whose sum is σ = 40004591040. Its totient is φ = 6666581712.

The previous prime is 20001020311. The next prime is 20001020381. The reversal of 20001020322 is 22302010002.

It is a junction number, because it is equal to n+sod(n) for n = 20001020298 and 20001020307.

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, 4579 + ... + 200057.

It is an arithmetic number, because the mean of its divisors is an integer number (2500286940).

Almost surely, 2^20001020322 is an apocalyptic number.

20001020322 is an abundant number, since it is smaller than the sum of its proper divisors (20003570718).

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

20001020322 is a wasteful number, since it uses less digits than its factorization.

20001020322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212537.

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 20001020322 its reverse (22302010002), we get a palindrome (42303030324).

The spelling of 20001020322 in words is "twenty billion, one million, twenty thousand, three hundred twenty-two".