1222127676 has 168 divisors, whose sum is σ = 3998596224. Its totient is φ = 317377440.

The previous prime is 1222127623. The next prime is 1222127677. The reversal of 1222127676 is 6767212221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1222127676.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222127677) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 221811 + ... + 227253.

It is an arithmetic number, because the mean of its divisors is an integer number (23801168).

Almost surely, 2^1222127676 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222127676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1999298112).

1222127676 is an abundant number, since it is smaller than the sum of its proper divisors (2776468548).

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

1222127676 is a wasteful number, since it uses less digits than its factorization.

1222127676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5483 (or 5466 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 1222127676 is about 34958.9427185663. The cubic root of 1222127676 is about 1069.1505401737.

Adding to 1222127676 its reverse (6767212221), we get a palindrome (7989339897).

The spelling of 1222127676 in words is "one billion, two hundred twenty-two million, one hundred twenty-seven thousand, six hundred seventy-six".