1422221002 has 4 divisors (see below), whose sum is σ = 2133331506. Its totient is φ = 711110500.

The previous prime is 1422220999. The next prime is 1422221011. The reversal of 1422221002 is 2001222241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2001222241 = 5309 ⋅376949.

It can be written as a sum of positive squares in only one way, i.e., 1406925081 + 15295921 = 37509^2 + 3911^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355555249 + ... + 355555252.

Almost surely, 2^1422221002 is an apocalyptic number.

1422221002 is a deficient number, since it is larger than the sum of its proper divisors (711110504).

1422221002 is an equidigital number, since it uses as much as digits as its factorization.

1422221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711110503.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1422221002 is about 37712.3454852652. The cubic root of 1422221002 is about 1124.5765654516.

Adding to 1422221002 its reverse (2001222241), we get a palindrome (3423443243).

The spelling of 1422221002 in words is "one billion, four hundred twenty-two million, two hundred twenty-one thousand, two".