1423334042221 has 16 divisors (see below), whose sum is σ = 1751823923584. Its totient is φ = 1126136291904.

The previous prime is 1423334042153. The next prime is 1423334042233. The reversal of 1423334042221 is 1222404333241.

It is not a de Polignac number, because 1423334042221 - 2⁷ = 1423334042093 is a prime.

It is a super-2 number, since 2×1423334042221² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423334042261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10141690 + ... + 10281076.

It is an arithmetic number, because the mean of its divisors is an integer number (109488995224).

Almost surely, 2^{1423334042221} is an apocalyptic number.

It is an amenable number.

1423334042221 is a deficient number, since it is larger than the sum of its proper divisors (328489881363).

1423334042221 is a wasteful number, since it uses less digits than its factorization.

1423334042221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251620.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 1423334042221 its reverse (1222404333241), we get a palindrome (2645738375462).

The spelling of 1423334042221 in words is "one trillion, four hundred twenty-three billion, three hundred thirty-four million, forty-two thousand, two hundred twenty-one".