221000120011 has 16 divisors (see below), whose sum is σ = 246257095680. Its totient is φ = 196605420480.

The previous prime is 221000119973. The next prime is 221000120017. The reversal of 221000120011 is 110021000122.

It is a cyclic number.

It is not a de Polignac number, because 221000120011 - 2²³ = 220991731403 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221000120011.

It is not an unprimeable number, because it can be changed into a prime (221000120017) 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, 3946375 + ... + 4001983.

It is an arithmetic number, because the mean of its divisors is an integer number (15391068480).

Almost surely, 2^221000120011 is an apocalyptic number.

221000120011 is a deficient number, since it is larger than the sum of its proper divisors (25256975669).

221000120011 is a wasteful number, since it uses less digits than its factorization.

221000120011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63354.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 221000120011 its reverse (110021000122), we get a palindrome (331021120133).

The spelling of 221000120011 in words is "two hundred twenty-one billion, one hundred twenty thousand, eleven".