1421202422 has 4 divisors (see below), whose sum is σ = 2131803636. Its totient is φ = 710601210.

The previous prime is 1421202401. The next prime is 1421202427. The reversal of 1421202422 is 2242021241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2242021241 = 16339 ⋅137219.

It is a junction number, because it is equal to n+sod(n) for n = 1421202394 and 1421202403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421202427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355300604 + ... + 355300607.

It is an arithmetic number, because the mean of its divisors is an integer number (532950909).

Almost surely, 2^1421202422 is an apocalyptic number.

1421202422 is a deficient number, since it is larger than the sum of its proper divisors (710601214).

1421202422 is an equidigital number, since it uses as much as digits as its factorization.

1421202422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710601213.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1421202422 is about 37698.8384701704. The cubic root of 1421202422 is about 1124.3080312919.

Adding to 1421202422 its reverse (2242021241), we get a palindrome (3663223663).

The spelling of 1421202422 in words is "one billion, four hundred twenty-one million, two hundred two thousand, four hundred twenty-two".