12221422234 has 16 divisors (see below), whose sum is σ = 20976926400. Its totient is φ = 5231273184.

The previous prime is 12221422219. The next prime is 12221422249. The reversal of 12221422234 is 43222412221.

It is an interprime number because it is at equal distance from previous prime (12221422219) and next prime (12221422249).

It is a super-2 number, since 2×12221422234² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12221422199 and 12221422208.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 528204 + ... + 550855.

It is an arithmetic number, because the mean of its divisors is an integer number (1311057900).

Almost surely, 2^12221422234 is an apocalyptic number.

12221422234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12221422234 is a deficient number, since it is larger than the sum of its proper divisors (8755504166).

12221422234 is a wasteful number, since it uses less digits than its factorization.

12221422234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079877.

The product of its digits is 3072, while the sum is 25.

Adding to 12221422234 its reverse (43222412221), we get a palindrome (55443834455).

The spelling of 12221422234 in words is "twelve billion, two hundred twenty-one million, four hundred twenty-two thousand, two hundred thirty-four".