98121220321001 has 4 divisors (see below), whose sum is σ = 99092717552004. Its totient is φ = 97149723090000.

The previous prime is 98121220320967. The next prime is 98121220321021. The reversal of 98121220321001 is 10012302212189.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 89532774654976 + 8588445666025 = 9462176^2 + 2930605^2 .

It is a cyclic number.

It is not a de Polignac number, because 98121220321001 - 2³⁰ = 98120146579177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98121220321021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485748615350 + ... + 485748615551.

It is an arithmetic number, because the mean of its divisors is an integer number (24773179388001).

Almost surely, 2^{98121220321001} is an apocalyptic number.

It is an amenable number.

98121220321001 is a deficient number, since it is larger than the sum of its proper divisors (971497231003).

98121220321001 is a wasteful number, since it uses less digits than its factorization.

98121220321001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971497231002.

The product of its (nonzero) digits is 3456, while the sum is 32.

The spelling of 98121220321001 in words is "ninety-eight trillion, one hundred twenty-one billion, two hundred twenty million, three hundred twenty-one thousand, one".