212013021013 has 16 divisors (see below), whose sum is σ = 223091688960.
Its totient is φ = 201217564800.
The previous prime is 212013020981. The next prime is 212013021029. The reversal of 212013021013 is 310120310212.
It is a cyclic number.
It is not a de Polignac number, because 212013021013 - 25 = 212013020981 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (212013021053) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17104048 + ... + 17116438.
It is an arithmetic number, because the mean of its divisors is an integer number (13943230560).
Almost surely, 2212013021013 is an apocalyptic number.
It is an amenable number.
212013021013 is a deficient number, since it is larger than the sum of its proper divisors (11078667947).
212013021013 is a wasteful number, since it uses less digits than its factorization.
212013021013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23748.
The product of its (nonzero) digits is 72, while the sum is 16.
Adding to 212013021013 its reverse (310120310212), we get a palindrome (522133331225).
The spelling of 212013021013 in words is "two hundred twelve billion, thirteen million, twenty-one thousand, thirteen".