121622336017728 has 224 divisors, whose sum is σ = 398423802169344. Its totient is φ = 31884146546688.

The previous prime is 121622336017697. The next prime is 121622336017771. The reversal of 121622336017728 is 827710633226121.

It is a tau number, because it is divible by the number of its divisors (224).

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, 17923450 + ... + 23759097.

It is an arithmetic number, because the mean of its divisors is an integer number (1778677688256).

Almost surely, 2^{121622336017728} is an apocalyptic number.

It is an amenable number.

121622336017728 is an abundant number, since it is smaller than the sum of its proper divisors (276801466151616).

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

121622336017728 is a wasteful number, since it uses less digits than its factorization.

121622336017728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41682749 (or 41682739 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 51.

The spelling of 121622336017728 in words is "one hundred twenty-one trillion, six hundred twenty-two billion, three hundred thirty-six million, seventeen thousand, seven hundred twenty-eight".