20112122122 has 16 divisors (see below), whose sum is σ = 30478735872. Its totient is φ = 9952621200.

The previous prime is 20112122111. The next prime is 20112122197. The reversal of 20112122122 is 22122121102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20112122096 and 20112122105.

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, 540943 + ... + 576925.

It is an arithmetic number, because the mean of its divisors is an integer number (1904920992).

Almost surely, 2^20112122122 is an apocalyptic number.

20112122122 is a deficient number, since it is larger than the sum of its proper divisors (10366613750).

20112122122 is a wasteful number, since it uses less digits than its factorization.

20112122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38853.

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

Adding to 20112122122 its reverse (22122121102), we get a palindrome (42234243224).

The spelling of 20112122122 in words is "twenty billion, one hundred twelve million, one hundred twenty-two thousand, one hundred twenty-two".