122120123212 has 12 divisors (see below), whose sum is σ = 213712841160. Its totient is φ = 61059311456.

The previous prime is 122120123189. The next prime is 122120123219. The reversal of 122120123212 is 212321021221.

It is a super-2 number, since 2×122120123212² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122120123212.

It is not an unprimeable number, because it can be changed into a prime (122120123219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349839 + ... + 605497.

It is an arithmetic number, because the mean of its divisors is an integer number (17809403430).

Almost surely, 2^122120123212 is an apocalyptic number.

It is an amenable number.

122120123212 is a deficient number, since it is larger than the sum of its proper divisors (91592717948).

122120123212 is a wasteful number, since it uses less digits than its factorization.

122120123212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375080 (or 375078 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 122120123212 its reverse (212321021221), we get a palindrome (334441144433).

The spelling of 122120123212 in words is "one hundred twenty-two billion, one hundred twenty million, one hundred twenty-three thousand, two hundred twelve".