221002231011009 has 64 divisors (see below), whose sum is σ = 339457618329600. Its totient is φ = 125280320751360.

The previous prime is 221002231010921. The next prime is 221002231011017. The reversal of 221002231011009 is 900110132200122.

It is not a de Polignac number, because 221002231011009 - 2¹⁵ = 221002230978241 is a prime.

It is a super-2 number, since 2×221002231011009² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 221002231011009.

It is not an unprimeable number, because it can be changed into a prime (221002231111009) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16516115499 + ... + 16516128879.

It is an arithmetic number, because the mean of its divisors is an integer number (5304025286400).

Almost surely, 2^{221002231011009} is an apocalyptic number.

It is an amenable number.

221002231011009 is a deficient number, since it is larger than the sum of its proper divisors (118455387318591).

221002231011009 is a wasteful number, since it uses less digits than its factorization.

221002231011009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22110.

The product of its (nonzero) digits is 432, while the sum is 24.

The spelling of 221002231011009 in words is "two hundred twenty-one trillion, two billion, two hundred thirty-one million, eleven thousand, nine".