1222231040 has 176 divisors, whose sum is σ = 3119824512. Its totient is φ = 458489856.

The previous prime is 1222231007. The next prime is 1222231067. The reversal of 1222231040 is 401322221.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11422667 + ... + 11422773.

Almost surely, 2^1222231040 is an apocalyptic number.

1222231040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222231040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1559912256).

1222231040 is an abundant number, since it is smaller than the sum of its proper divisors (1897593472).

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

1222231040 is a wasteful number, since it uses less digits than its factorization.

1222231040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1222231040 is about 34960.4210500961. The cubic root of 1222231040 is about 1069.1806812038.

Adding to 1222231040 its reverse (401322221), we get a palindrome (1623553261).

The spelling of 1222231040 in words is "one billion, two hundred twenty-two million, two hundred thirty-one thousand, forty".