1422623704721 has 8 divisors (see below), whose sum is σ = 1433260495560. Its totient is φ = 1411990576128.

The previous prime is 1422623704709. The next prime is 1422623704727. The reversal of 1422623704721 is 1274073262241.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 963263731600 + 459359973121 = 981460^2 + 677761^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1422623704721 - 2¹⁸ = 1422623442577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1422623704727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133256 + ... + 1692041.

It is an arithmetic number, because the mean of its divisors is an integer number (179157561945).

Almost surely, 2^{1422623704721} is an apocalyptic number.

It is an amenable number.

1422623704721 is a deficient number, since it is larger than the sum of its proper divisors (10636790839).

1422623704721 is a wasteful number, since it uses less digits than its factorization.

1422623704721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1831123.

The product of its (nonzero) digits is 225792, while the sum is 41.

Adding to 1422623704721 its reverse (1274073262241), we get a palindrome (2696696966962).

The spelling of 1422623704721 in words is "one trillion, four hundred twenty-two billion, six hundred twenty-three million, seven hundred four thousand, seven hundred twenty-one".