2002221001091 has 8 divisors (see below), whose sum is σ = 2116885644480. Its totient is φ = 1888484816808.

The previous prime is 2002221001063. The next prime is 2002221001111. The reversal of 2002221001091 is 1901001222002.

It is a happy number.

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 2002221001091 - 2¹⁴ = 2002220984707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2002221003091) 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, 232110341 + ... + 232118966.

It is an arithmetic number, because the mean of its divisors is an integer number (264610705560).

Almost surely, 2^{2002221001091} is an apocalyptic number.

2002221001091 is a deficient number, since it is larger than the sum of its proper divisors (114664643389).

2002221001091 is a wasteful number, since it uses less digits than its factorization.

2002221001091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464229553.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 2002221001091 its reverse (1901001222002), we get a palindrome (3903222223093).

The spelling of 2002221001091 in words is "two trillion, two billion, two hundred twenty-one million, one thousand, ninety-one".