101210122012 has 24 divisors (see below), whose sum is σ = 179839424016.
Its totient is φ = 49828086528.
The previous prime is 101210122009. The next prime is 101210122019. The reversal of 101210122012 is 210221012101.
It is a junction number, because it is equal to n+sod(n) for n = 101210121983 and 101210122001.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (101210122019) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 544308 + ... + 706180.
It is an arithmetic number, because the mean of its divisors is an integer number (7493309334).
Almost surely, 2101210122012 is an apocalyptic number.
It is an amenable number.
101210122012 is a deficient number, since it is larger than the sum of its proper divisors (78629302004).
101210122012 is a wasteful number, since it uses less digits than its factorization.
101210122012 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 164277 (or 164275 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 13.
Adding to 101210122012 its reverse (210221012101), we get a palindrome (311431134113).
The spelling of 101210122012 in words is "one hundred one billion, two hundred ten million, one hundred twenty-two thousand, twelve".