2221101020091 has 8 divisors (see below), whose sum is σ = 3117334765120. Its totient is φ = 1402800644232.

The previous prime is 2221101020069. The next prime is 2221101020123. The reversal of 2221101020091 is 1900201011222.

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

It is not a de Polignac number, because 2221101020091 - 2¹⁵ = 2221100987323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221101020191) 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, 19483342225 + ... + 19483342338.

It is an arithmetic number, because the mean of its divisors is an integer number (389666845640).

Almost surely, 2^{2221101020091} is an apocalyptic number.

2221101020091 is a deficient number, since it is larger than the sum of its proper divisors (896233745029).

2221101020091 is a wasteful number, since it uses less digits than its factorization.

2221101020091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38966684585.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 2221101020091 in words is "two trillion, two hundred twenty-one billion, one hundred one million, twenty thousand, ninety-one".