1420222111 has 24 divisors (see below), whose sum is σ = 1783665792. Its totient is φ = 1098597600.

The previous prime is 1420222093. The next prime is 1420222121. The reversal of 1420222111 is 1112220241.

It is not a de Polignac number, because 1420222111 - 2¹⁵ = 1420189343 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 (1420222121) 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 23 ways as a sum of consecutive naturals, for example, 2522316 + ... + 2522878.

It is an arithmetic number, because the mean of its divisors is an integer number (74319408).

Almost surely, 2^1420222111 is an apocalyptic number.

1420222111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1420222111 is a deficient number, since it is larger than the sum of its proper divisors (363443681).

1420222111 is an equidigital number, since it uses as much as digits as its factorization.

1420222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943 (or 762 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1420222111 is about 37685.8343545688. The cubic root of 1420222111 is about 1124.0494650179.

Adding to 1420222111 its reverse (1112220241), we get a palindrome (2532442352).

The spelling of 1420222111 in words is "one billion, four hundred twenty million, two hundred twenty-two thousand, one hundred eleven".