1022222344 has 128 divisors (see below), whose sum is σ = 2395008000. Its totient is φ = 402105600.

The previous prime is 1022222251. The next prime is 1022222413. The reversal of 1022222344 is 4432222201.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2847237 + ... + 2847595.

It is an arithmetic number, because the mean of its divisors is an integer number (18711000).

Almost surely, 2^1022222344 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 1022222344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1197504000).

1022222344 is an abundant number, since it is smaller than the sum of its proper divisors (1372785656).

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

1022222344 is a wasteful number, since it uses less digits than its factorization.

1022222344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539 (or 535 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1022222344 is about 31972.2120598497. The cubic root of 1022222344 is about 1007.3532452537.

Adding to 1022222344 its reverse (4432222201), we get a palindrome (5454444545).

The spelling of 1022222344 in words is "one billion, twenty-two million, two hundred twenty-two thousand, three hundred forty-four".