221001020010111 has 16 divisors (see below), whose sum is σ = 321749061090048. Its totient is φ = 133817915467200.

The previous prime is 221001020010079. The next prime is 221001020010151. The reversal of 221001020010111 is 111010020100122.

It is not a de Polignac number, because 221001020010111 - 2⁵ = 221001020010079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221001020010151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3052379755 + ... + 3052452156.

It is an arithmetic number, because the mean of its divisors is an integer number (20109316318128).

Almost surely, 2^{221001020010111} is an apocalyptic number.

221001020010111 is a deficient number, since it is larger than the sum of its proper divisors (100748041079937).

221001020010111 is a wasteful number, since it uses less digits than its factorization.

221001020010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6104833022.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 221001020010111 its reverse (111010020100122), we get a palindrome (332011040110233).

The spelling of 221001020010111 in words is "two hundred twenty-one trillion, one billion, twenty million, ten thousand, one hundred eleven".