1422221000 has 32 divisors (see below), whose sum is σ = 3327999480. Its totient is φ = 568888000.

The previous prime is 1422220999. The next prime is 1422221011. The reversal of 1422221000 is 1222241.

It can be written as a sum of positive squares in 4 ways, for example, as 817159396 + 605061604 = 28586^2 + 24598^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 710111 + ... + 712110.

Almost surely, 2^1422221000 is an apocalyptic number.

1422221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1422221000 is an abundant number, since it is smaller than the sum of its proper divisors (1905778480).

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

1422221000 is a wasteful number, since it uses less digits than its factorization.

1422221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1422242 (or 1422228 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1422221000 is about 37712.3454587487. The cubic root of 1422221000 is about 1124.5765649245.

Adding to 1422221000 its reverse (1222241), we get a palindrome (1423443241).

The spelling of 1422221000 in words is "one billion, four hundred twenty-two million, two hundred twenty-one thousand".