91120022010221 has 8 divisors (see below), whose sum is σ = 91586911569120. Its totient is φ = 90653176405008.

The previous prime is 91120022010169. The next prime is 91120022010317. The reversal of 91120022010221 is 12201022002119.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91120022010221 - 2¹⁴ = 91120021993837 is a prime.

It is a super-3 number, since 3×91120022010221³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91120022012221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6827591 + ... + 15127988.

It is an arithmetic number, because the mean of its divisors is an integer number (11448363946140).

Almost surely, 2^{91120022010221} is an apocalyptic number.

It is an amenable number.

91120022010221 is a deficient number, since it is larger than the sum of its proper divisors (466889558899).

91120022010221 is a wasteful number, since it uses less digits than its factorization.

91120022010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21976843.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 91120022010221 in words is "ninety-one trillion, one hundred twenty billion, twenty-two million, ten thousand, two hundred twenty-one".