12121142880 has 192 divisors, whose sum is σ = 47603179008. Its totient is φ = 2518671360.

The previous prime is 12121142867. The next prime is 12121142903. The reversal of 12121142880 is 8824112121.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127017 + ... + 200936.

It is an arithmetic number, because the mean of its divisors is an integer number (247933224).

Almost surely, 2^12121142880 is an apocalyptic number.

12121142880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12121142880 is an abundant number, since it is smaller than the sum of its proper divisors (35482036128).

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

12121142880 is a wasteful number, since it uses less digits than its factorization.

12121142880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327989 (or 327981 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 30.

The spelling of 12121142880 in words is "twelve billion, one hundred twenty-one million, one hundred forty-two thousand, eight hundred eighty".