12220210022221 has 8 divisors (see below), whose sum is σ = 13062536270784. Its totient is φ = 11403801504480.

The previous prime is 12220210022191. The next prime is 12220210022231. The reversal of 12220210022221 is 12222001202221.

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 12220210022221 - 2²¹ = 12220207925069 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 (12220210022231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6479431731 + ... + 6479433616.

It is an arithmetic number, because the mean of its divisors is an integer number (1632817033848).

Almost surely, 2^{12220210022221} is an apocalyptic number.

It is an amenable number.

12220210022221 is a deficient number, since it is larger than the sum of its proper divisors (842326248563).

12220210022221 is a wasteful number, since it uses less digits than its factorization.

12220210022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12958865411.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12220210022221 its reverse (12222001202221), we get a palindrome (24442211224442).

The spelling of 12220210022221 in words is "twelve trillion, two hundred twenty billion, two hundred ten million, twenty-two thousand, two hundred twenty-one".