12001022231 has 8 divisors (see below), whose sum is σ = 13781078400. Its totient is φ = 10335808440.

The previous prime is 12001022227. The next prime is 12001022233. The reversal of 12001022231 is 13222010021.

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 12001022231 - 2² = 12001022227 is a prime.

It is a super-2 number, since 2×12001022231² (a number of 21 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 (12001022233) 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, 28710371 + ... + 28710788.

It is an arithmetic number, because the mean of its divisors is an integer number (1722634800).

Almost surely, 2^12001022231 is an apocalyptic number.

12001022231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12001022231 is a deficient number, since it is larger than the sum of its proper divisors (1780056169).

12001022231 is a wasteful number, since it uses less digits than its factorization.

12001022231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57421189.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12001022231 its reverse (13222010021), we get a palindrome (25223032252).

It can be divided in two parts, 120010 and 22231, that added together give a palindrome (142241).

The spelling of 12001022231 in words is "twelve billion, one million, twenty-two thousand, two hundred thirty-one".