221010332222021 has 8 divisors (see below), whose sum is σ = 224635260351744. Its totient is φ = 217385462412720.

The previous prime is 221010332221949. The next prime is 221010332222023. The reversal of 221010332222021 is 120222233010122.

It is a happy number.

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 221010332222021 - 2²² = 221010328027717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221010332222023) 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, 6905921 + ... + 22129446.

It is an arithmetic number, because the mean of its divisors is an integer number (28079407543968).

Almost surely, 2^{221010332222021} is an apocalyptic number.

It is an amenable number.

221010332222021 is a deficient number, since it is larger than the sum of its proper divisors (3624928129723).

221010332222021 is a wasteful number, since it uses less digits than its factorization.

221010332222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29160211.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 221010332222021 its reverse (120222233010122), we get a palindrome (341232565232143).

The spelling of 221010332222021 in words is "two hundred twenty-one trillion, ten billion, three hundred thirty-two million, two hundred twenty-two thousand, twenty-one".