221010010111 has 8 divisors (see below), whose sum is σ = 246708849024. Its totient is φ = 196245674520.

The previous prime is 221010010097. The next prime is 221010010121. The reversal of 221010010111 is 111010010122.

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-221010010111 is a prime.

It is a super-3 number, since 3×221010010111³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221010010121) 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, 233625331 + ... + 233626276.

It is an arithmetic number, because the mean of its divisors is an integer number (30838606128).

Almost surely, 2^221010010111 is an apocalyptic number.

221010010111 is a deficient number, since it is larger than the sum of its proper divisors (25698838913).

221010010111 is a wasteful number, since it uses less digits than its factorization.

221010010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467251661.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 221010010111 its reverse (111010010122), we get a palindrome (332020020233).

The spelling of 221010010111 in words is "two hundred twenty-one billion, ten million, ten thousand, one hundred eleven".