1222641024 has 128 divisors (see below), whose sum is σ = 3639098880. Its totient is φ = 360437760.

The previous prime is 1222641001. The next prime is 1222641029. The reversal of 1222641024 is 4201462221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 1222640985 and 1222641003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222641029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152377 + ... + 160199.

It is an arithmetic number, because the mean of its divisors is an integer number (28430460).

Almost surely, 2^1222641024 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 1222641024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1819549440).

1222641024 is an abundant number, since it is smaller than the sum of its proper divisors (2416457856).

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

1222641024 is a wasteful number, since it uses less digits than its factorization.

1222641024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7888 (or 7876 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 1222641024 is about 34966.2841034045. The cubic root of 1222641024 is about 1069.3002161510.

It can be divided in two parts, 1222 and 641024, that added together give a palindrome (642246).

The spelling of 1222641024 in words is "one billion, two hundred twenty-two million, six hundred forty-one thousand, twenty-four".