221002112021011 has 8 divisors (see below), whose sum is σ = 232903366225920. Its totient is φ = 209127814225992.

The previous prime is 221002112020969. The next prime is 221002112021017. The reversal of 221002112021011 is 110120211200122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221002112021011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221002112021017) 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, 6739085635 + ... + 6739118428.

It is an arithmetic number, because the mean of its divisors is an integer number (29112920778240).

Almost surely, 2^{221002112021011} is an apocalyptic number.

221002112021011 is a deficient number, since it is larger than the sum of its proper divisors (11901254204909).

221002112021011 is a wasteful number, since it uses less digits than its factorization.

221002112021011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13478204945.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221002112021011 its reverse (110120211200122), we get a palindrome (331122323221133).

The spelling of 221002112021011 in words is "two hundred twenty-one trillion, two billion, one hundred twelve million, twenty-one thousand, eleven".