121841777796 has 12 divisors (see below), whose sum is σ = 284297481552. Its totient is φ = 40613925928.

The previous prime is 121841777753. The next prime is 121841777801. The reversal of 121841777796 is 697777148121.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5076740730 + ... + 5076740753.

It is an arithmetic number, because the mean of its divisors is an integer number (23691456796).

Almost surely, 2^121841777796 is an apocalyptic number.

It is an amenable number.

121841777796 is an abundant number, since it is smaller than the sum of its proper divisors (162455703756).

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

121841777796 is a wasteful number, since it uses less digits than its factorization.

121841777796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10153481490 (or 10153481488 counting only the distinct ones).

The product of its digits is 8297856, while the sum is 60.

The spelling of 121841777796 in words is "one hundred twenty-one billion, eight hundred forty-one million, seven hundred seventy-seven thousand, seven hundred ninety-six".