20122122112012 has 12 divisors (see below), whose sum is σ = 35371622727616. Its totient is φ = 10015944189840.

The previous prime is 20122122112007. The next prime is 20122122112067. The reversal of 20122122112012 is 21021122122102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11279215539 + ... + 11279217322.

Almost surely, 2^{20122122112012} is an apocalyptic number.

It is an amenable number.

20122122112012 is a deficient number, since it is larger than the sum of its proper divisors (15249500615604).

20122122112012 is a wasteful number, since it uses less digits than its factorization.

20122122112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22558433088 (or 22558433086 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 20122122112012 its reverse (21021122122102), we get a palindrome (41143244234114).

The spelling of 20122122112012 in words is "twenty trillion, one hundred twenty-two billion, one hundred twenty-two million, one hundred twelve thousand, twelve".