12021122160 has 120 divisors (see below), whose sum is σ = 42495769680. Its totient is φ = 3036911616.

The previous prime is 12021122131. The next prime is 12021122171. The reversal of 12021122160 is 6122112021.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 425689 + ... + 453048.

It is an arithmetic number, because the mean of its divisors is an integer number (354131414).

Almost surely, 2^12021122160 is an apocalyptic number.

12021122160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12021122160 is an abundant number, since it is smaller than the sum of its proper divisors (30474647520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12021122160 is a wasteful number, since it uses less digits than its factorization.

12021122160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878775 (or 878766 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 12021122160 its reverse (6122112021), we get a palindrome (18143234181).

The spelling of 12021122160 in words is "twelve billion, twenty-one million, one hundred twenty-two thousand, one hundred sixty".