221002101122011 has 4 divisors (see below), whose sum is σ = 241093201224024. Its totient is φ = 200911001020000.

The previous prime is 221002101121933. The next prime is 221002101122027. The reversal of 221002101122011 is 110221101200122.

221002101122011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 221002101122011 - 2¹⁹ = 221002100597723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221002101126011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10045550050990 + ... + 10045550051011.

It is an arithmetic number, because the mean of its divisors is an integer number (60273300306006).

Almost surely, 2^{221002101122011} is an apocalyptic number.

221002101122011 is a deficient number, since it is larger than the sum of its proper divisors (20091100102013).

221002101122011 is a wasteful number, since it uses less digits than its factorization.

221002101122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20091100102012.

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

Adding to 221002101122011 its reverse (110221101200122), we get a palindrome (331223202322133).

The spelling of 221002101122011 in words is "two hundred twenty-one trillion, two billion, one hundred one million, one hundred twenty-two thousand, eleven".