1211001022160 has 40 divisors (see below), whose sum is σ = 2824083714336.
Its totient is φ = 482936952960.
The previous prime is 1211001022159. The next prime is 1211001022229. The reversal of 1211001022160 is 612201001121.
Adding to 1211001022160 its reverse (612201001121), we get a palindrome (1823202023281).
It is a tau number, because it is divible by the number of its divisors (40).
It is a super-3 number, since 3×12110010221603 (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22839854 + ... + 22892813.
Almost surely, 21211001022160 is an apocalyptic number.
1211001022160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1211001022160 is an abundant number, since it is smaller than the sum of its proper divisors (1613082692176).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1211001022160 is a wasteful number, since it uses less digits than its factorization.
1211001022160 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 45733011 (or 45733005 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 17.
The spelling of 1211001022160 in words is "one trillion, two hundred eleven billion, one million, twenty-two thousand, one hundred sixty".