20112221122 has 8 divisors (see below), whose sum is σ = 34478093376. Its totient is φ = 8619523332.

The previous prime is 20112221119. The next prime is 20112221141. The reversal of 20112221122 is 22112221102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20112221096 and 20112221105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 718293598 + ... + 718293625.

It is an arithmetic number, because the mean of its divisors is an integer number (4309761672).

Almost surely, 2^20112221122 is an apocalyptic number.

20112221122 is a deficient number, since it is larger than the sum of its proper divisors (14365872254).

20112221122 is a wasteful number, since it uses less digits than its factorization.

20112221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1436587232.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20112221122 its reverse (22112221102), we get a palindrome (42224442224).

The spelling of 20112221122 in words is "twenty billion, one hundred twelve million, two hundred twenty-one thousand, one hundred twenty-two".