212160501121 has 16 divisors (see below), whose sum is σ = 221919963840. Its totient is φ = 202568900800.

The previous prime is 212160501107. The next prime is 212160501139. The reversal of 212160501121 is 121105061212.

It is a cyclic number.

It is not a de Polignac number, because 212160501121 - 2¹⁵ = 212160468353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212160501092 and 212160501101.

It is not an unprimeable number, because it can be changed into a prime (212160501521) 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, 2378490 + ... + 2466076.

It is an arithmetic number, because the mean of its divisors is an integer number (13869997740).

Almost surely, 2^212160501121 is an apocalyptic number.

It is an amenable number.

212160501121 is a deficient number, since it is larger than the sum of its proper divisors (9759462719).

212160501121 is a wasteful number, since it uses less digits than its factorization.

212160501121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88544.

The product of its (nonzero) digits is 240, while the sum is 22.

Adding to 212160501121 its reverse (121105061212), we get a palindrome (333265562333).

The spelling of 212160501121 in words is "two hundred twelve billion, one hundred sixty million, five hundred one thousand, one hundred twenty-one".