20021122106 has 16 divisors (see below), whose sum is σ = 30508077600. Its totient is φ = 9852039120.

The previous prime is 20021122097. The next prime is 20021122157. The reversal of 20021122106 is 60122112002.

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, 77720 + ... + 214668.

It is an arithmetic number, because the mean of its divisors is an integer number (1906754850).

Almost surely, 2^20021122106 is an apocalyptic number.

20021122106 is a deficient number, since it is larger than the sum of its proper divisors (10486955494).

20021122106 is a wasteful number, since it uses less digits than its factorization.

20021122106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138109.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20021122106 its reverse (60122112002), we get a palindrome (80143234108).

The spelling of 20021122106 in words is "twenty billion, twenty-one million, one hundred twenty-two thousand, one hundred six".