221120022110221 has 16 divisors (see below), whose sum is σ = 248071815472320. Its totient is φ = 195757350929280.

The previous prime is 221120022110219. The next prime is 221120022110263. The reversal of 221120022110221 is 122011220021122.

It is a cyclic number.

It is not a de Polignac number, because 221120022110221 - 2¹ = 221120022110219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221120022111221) 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, 3515725575 + ... + 3515788468.

It is an arithmetic number, because the mean of its divisors is an integer number (15504488467020).

Almost surely, 2^{221120022110221} is an apocalyptic number.

It is an amenable number.

221120022110221 is a deficient number, since it is larger than the sum of its proper divisors (26951793362099).

221120022110221 is a wasteful number, since it uses less digits than its factorization.

221120022110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7031514156.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 221120022110221 its reverse (122011220021122), we get a palindrome (343131242131343).

The spelling of 221120022110221 in words is "two hundred twenty-one trillion, one hundred twenty billion, twenty-two million, one hundred ten thousand, two hundred twenty-one".