1420222351 has 4 divisors (see below), whose sum is σ = 1420357672. Its totient is φ = 1420087032.

The previous prime is 1420222343. The next prime is 1420222369. The reversal of 1420222351 is 1532220241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1532220241 = 1013 ⋅1512557.

It is a cyclic number.

It is not a de Polignac number, because 1420222351 - 2³ = 1420222343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420222451) 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 in 3 ways as a sum of consecutive naturals, for example, 50460 + ... + 73393.

It is an arithmetic number, because the mean of its divisors is an integer number (355089418).

Almost surely, 2^1420222351 is an apocalyptic number.

1420222351 is a deficient number, since it is larger than the sum of its proper divisors (135321).

1420222351 is a wasteful number, since it uses less digits than its factorization.

1420222351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135320.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1420222351 is about 37685.8375387890. The cubic root of 1420222351 is about 1124.0495283347.

Adding to 1420222351 its reverse (1532220241), we get a palindrome (2952442592).

The spelling of 1420222351 in words is "one billion, four hundred twenty million, two hundred twenty-two thousand, three hundred fifty-one".