1422322221 has 16 divisors (see below), whose sum is σ = 2016403200. Its totient is φ = 888695808.

The previous prime is 1422322219. The next prime is 1422322259. The reversal of 1422322221 is 1222232241.

It is not a de Polignac number, because 1422322221 - 2¹ = 1422322219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422322271) 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, 46156 + ... + 70533.

It is an arithmetic number, because the mean of its divisors is an integer number (126025200).

Almost surely, 2^1422322221 is an apocalyptic number.

It is an amenable number.

1422322221 is a deficient number, since it is larger than the sum of its proper divisors (594080979).

1422322221 is a wasteful number, since it uses less digits than its factorization.

1422322221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116948.

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

The square root of 1422322221 is about 37713.6874489886. The cubic root of 1422322221 is about 1124.6032433999.

Adding to 1422322221 its reverse (1222232241), we get a palindrome (2644554462).

It can be divided in two parts, 142232 and 2221, that added together give a triangular number (144453 = T₅₃₇).

The spelling of 1422322221 in words is "one billion, four hundred twenty-two million, three hundred twenty-two thousand, two hundred twenty-one".