12221002222231 has 4 divisors (see below), whose sum is σ = 13332002424264. Its totient is φ = 11110002020200.

The previous prime is 12221002222223. The next prime is 12221002222291. The reversal of 12221002222231 is 13222220012221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12221002222231 - 2³ = 12221002222223 is a prime.

It is a super-2 number, since 2×12221002222231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221002222211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555500101000 + ... + 555500101021.

It is an arithmetic number, because the mean of its divisors is an integer number (3333000606066).

Almost surely, 2^{12221002222231} is an apocalyptic number.

12221002222231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12221002222231 is a deficient number, since it is larger than the sum of its proper divisors (1111000202033).

12221002222231 is a wasteful number, since it uses less digits than its factorization.

12221002222231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111000202032.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 12221002222231 its reverse (13222220012221), we get a palindrome (25443222234452).

The spelling of 12221002222231 in words is "twelve trillion, two hundred twenty-one billion, two million, two hundred twenty-two thousand, two hundred thirty-one".