1220214423 has 32 divisors (see below), whose sum is σ = 1835882496. Its totient is φ = 716722688.

The previous prime is 1220214421. The next prime is 1220214427. The reversal of 1220214423 is 3244120221.

It is not a de Polignac number, because 1220214423 - 2¹ = 1220214421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1220214423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220214421) 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 31 ways as a sum of consecutive naturals, for example, 44065 + ... + 66197.

It is an arithmetic number, because the mean of its divisors is an integer number (57371328).

Almost surely, 2^1220214423 is an apocalyptic number.

1220214423 is a deficient number, since it is larger than the sum of its proper divisors (615668073).

1220214423 is a wasteful number, since it uses less digits than its factorization.

1220214423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22223.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1220214423 is about 34931.5677146045. The cubic root of 1220214423 is about 1068.5923268507.

Adding to 1220214423 its reverse (3244120221), we get a palindrome (4464334644).

The spelling of 1220214423 in words is "one billion, two hundred twenty million, two hundred fourteen thousand, four hundred twenty-three".