1231222014 has 48 divisors (see below), whose sum is σ = 2931467760. Its totient is φ = 370366080.

The previous prime is 1231222007. The next prime is 1231222037. The reversal of 1231222014 is 4102221321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4432 + ... + 49820.

It is an arithmetic number, because the mean of its divisors is an integer number (61072245).

Almost surely, 2^1231222014 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1231222014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1465733880).

1231222014 is an abundant number, since it is smaller than the sum of its proper divisors (1700245746).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231222014 is a wasteful number, since it uses less digits than its factorization.

1231222014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45545 (or 45542 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1231222014 is about 35088.7733327912. The cubic root of 1231222014 is about 1071.7959804945.

Adding to 1231222014 its reverse (4102221321), we get a palindrome (5333443335).

The spelling of 1231222014 in words is "one billion, two hundred thirty-one million, two hundred twenty-two thousand, fourteen".