122122011112 has 8 divisors (see below), whose sum is σ = 228978770850. Its totient is φ = 61061005552.

The previous prime is 122122011101. The next prime is 122122011113. The reversal of 122122011112 is 211110221221.

It can be written as a sum of positive squares in only one way, i.e., 81948222756 + 40173788356 = 286266^2 + 200434^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (122122011113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7632625687 + ... + 7632625702.

Almost surely, 2^122122011112 is an apocalyptic number.

It is an amenable number.

122122011112 is a deficient number, since it is larger than the sum of its proper divisors (106856759738).

122122011112 is a wasteful number, since it uses less digits than its factorization.

122122011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15265251395 (or 15265251391 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 122122011112 its reverse (211110221221), we get a palindrome (333232232333).

The spelling of 122122011112 in words is "one hundred twenty-two billion, one hundred twenty-two million, eleven thousand, one hundred twelve".