20011212322 has 16 divisors (see below), whose sum is σ = 30096646272. Its totient is φ = 9979029360.

The previous prime is 20011212301. The next prime is 20011212379. The reversal of 20011212322 is 22321211002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20011212296 and 20011212305.

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, 1378888 + ... + 1393324.

It is an arithmetic number, because the mean of its divisors is an integer number (1881040392).

Almost surely, 2^20011212322 is an apocalyptic number.

20011212322 is a deficient number, since it is larger than the sum of its proper divisors (10085433950).

20011212322 is a wasteful number, since it uses less digits than its factorization.

20011212322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16233.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20011212322 its reverse (22321211002), we get a palindrome (42332423324).

The spelling of 20011212322 in words is "twenty billion, eleven million, two hundred twelve thousand, three hundred twenty-two".