221122020011 has 8 divisors (see below), whose sum is σ = 221851606080. Its totient is φ = 220393203912.

The previous prime is 221122019977. The next prime is 221122020029. The reversal of 221122020011 is 110020221122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221122020011 - 2⁶ = 221122019947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221122020061) 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, 385676 + ... + 768758.

It is an arithmetic number, because the mean of its divisors is an integer number (27731450760).

Almost surely, 2^221122020011 is an apocalyptic number.

221122020011 is a deficient number, since it is larger than the sum of its proper divisors (729586069).

221122020011 is a wasteful number, since it uses less digits than its factorization.

221122020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384985.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221122020011 its reverse (110020221122), we get a palindrome (331142241133).

The spelling of 221122020011 in words is "two hundred twenty-one billion, one hundred twenty-two million, twenty thousand, eleven".