12220222202221 has 8 divisors (see below), whose sum is σ = 13346707106304. Its totient is φ = 11096329900320.

The previous prime is 12220222202197. The next prime is 12220222202257.

12220222202221 is nontrivially palindromic in base 10.

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 12220222202221 - 2¹⁹ = 12220221677933 is a prime.

It is a super-4 number, since 4×12220222202221⁴ (a number of 53 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a junction number, because it is equal to n+sod(n) for n = 12220222202192 and 12220222202201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220222202021) 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, 648140685 + ... + 648159538.

It is an arithmetic number, because the mean of its divisors is an integer number (1668338388288).

Almost surely, 2^{12220222202221} is an apocalyptic number.

12220222202221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12220222202221 is a deficient number, since it is larger than the sum of its proper divisors (1126484904083).

12220222202221 is a wasteful number, since it uses less digits than its factorization.

12220222202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296301091.

The product of its (nonzero) digits is 1024, while the sum is 22.

Multiplying 12220222202221 by its sum of digits (22), we get a palindrome (268844888448862).

It can be divided in two parts, 1222022 and 2202221, that added together give a palindrome (3424243).

The spelling of 12220222202221 in words is "twelve trillion, two hundred twenty billion, two hundred twenty-two million, two hundred two thousand, two hundred twenty-one".