2122121014212 has 12 divisors (see below), whose sum is σ = 4951615699856.
Its totient is φ = 707373671400.
The previous prime is 2122121014187. The next prime is 2122121014217. The reversal of 2122121014212 is 2124101212212.
It is a tau number, because it is divible by the number of its divisors (12).
It is not an unprimeable number, because it can be changed into a prime (2122121014217) 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, 88421708914 + ... + 88421708937.
Almost surely, 22122121014212 is an apocalyptic number.
It is an amenable number.
2122121014212 is an abundant number, since it is smaller than the sum of its proper divisors (2829494685644).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2122121014212 is a wasteful number, since it uses less digits than its factorization.
2122121014212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 176843417858 (or 176843417856 counting only the distinct ones).
The product of its (nonzero) digits is 256, while the sum is 21.
Adding to 2122121014212 its reverse (2124101212212), we get a palindrome (4246222226424).
The spelling of 2122121014212 in words is "two trillion, one hundred twenty-two billion, one hundred twenty-one million, fourteen thousand, two hundred twelve".