1322223661 has 16 divisors (see below), whose sum is σ = 1521907200. Its totient is φ = 1136084400.

The previous prime is 1322223659. The next prime is 1322223703. The reversal of 1322223661 is 1663222231.

It is not a de Polignac number, because 1322223661 - 2¹ = 1322223659 is a prime.

It is a super-3 number, since 3×1322223661³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322223611) 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, 84546 + ... + 98956.

It is an arithmetic number, because the mean of its divisors is an integer number (95119200).

Almost surely, 2^1322223661 is an apocalyptic number.

1322223661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1322223661 is a deficient number, since it is larger than the sum of its proper divisors (199683539).

1322223661 is a wasteful number, since it uses less digits than its factorization.

1322223661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14880.

The product of its digits is 5184, while the sum is 28.

The square root of 1322223661 is about 36362.3934993284. The cubic root of 1322223661 is about 1097.5769422139.

Adding to 1322223661 its reverse (1663222231), we get a palindrome (2985445892).

The spelling of 1322223661 in words is "one billion, three hundred twenty-two million, two hundred twenty-three thousand, six hundred sixty-one".