20011220322 has 16 divisors (see below), whose sum is σ = 40201916160. Its totient is φ = 6640494192.

The previous prime is 20011220303. The next prime is 20011220351. The reversal of 20011220322 is 22302211002.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7476697 + ... + 7479372.

It is an arithmetic number, because the mean of its divisors is an integer number (2512619760).

Almost surely, 2^20011220322 is an apocalyptic number.

20011220322 is an abundant number, since it is smaller than the sum of its proper divisors (20190695838).

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

20011220322 is a wasteful number, since it uses less digits than its factorization.

20011220322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14956297.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20011220322 its reverse (22302211002), we get a palindrome (42313431324).

The spelling of 20011220322 in words is "twenty billion, eleven million, two hundred twenty thousand, three hundred twenty-two".