1222525224 has 96 divisors (see below), whose sum is σ = 3442813920. Its totient is φ = 406420416.

The previous prime is 1222525211. The next prime is 1222525229. The reversal of 1222525224 is 4225252221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1222525229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1093914 + ... + 1095030.

It is an arithmetic number, because the mean of its divisors is an integer number (35862645).

Almost surely, 2^1222525224 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 1222525224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1721406960).

1222525224 is an abundant number, since it is smaller than the sum of its proper divisors (2220288696).

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

1222525224 is a wasteful number, since it uses less digits than its factorization.

1222525224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701 (or 1685 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 1222525224 is about 34964.6281833512. The cubic root of 1222525224 is about 1069.2664562078.

Adding to 1222525224 its reverse (4225252221), we get a palindrome (5447777445).

The spelling of 1222525224 in words is "one billion, two hundred twenty-two million, five hundred twenty-five thousand, two hundred twenty-four".