221200202021011 has 8 divisors (see below), whose sum is σ = 223268583222000. Its totient is φ = 219131840997888.

The previous prime is 221200202020961. The next prime is 221200202021039. The reversal of 221200202021011 is 110120202002122.

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 a de Polignac number, because none of the positive numbers 2^k-221200202021011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221200202027011) 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, 17449855 + ... + 27329431.

It is an arithmetic number, because the mean of its divisors is an integer number (27908572902750).

Almost surely, 2^{221200202021011} is an apocalyptic number.

221200202021011 is a deficient number, since it is larger than the sum of its proper divisors (2068381200989).

221200202021011 is a wasteful number, since it uses less digits than its factorization.

221200202021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10088933.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221200202021011 its reverse (110120202002122), we get a palindrome (331320404023133).

The spelling of 221200202021011 in words is "two hundred twenty-one trillion, two hundred billion, two hundred two million, twenty-one thousand, eleven".