1322201131 has 4 divisors (see below), whose sum is σ = 1323288792. Its totient is φ = 1321113472.

The previous prime is 1322201107. The next prime is 1322201137. The reversal of 1322201131 is 1311022231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1322201131 - 2⁵ = 1322201099 is a prime.

It is a super-2 number, since 2×1322201131² = 3496431661635358322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1322201137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 542005 + ... + 544438.

It is an arithmetic number, because the mean of its divisors is an integer number (330822198).

Almost surely, 2^1322201131 is an apocalyptic number.

1322201131 is a deficient number, since it is larger than the sum of its proper divisors (1087661).

1322201131 is a wasteful number, since it uses less digits than its factorization.

1322201131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087660.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1322201131 is about 36362.0836999202. The cubic root of 1322201131 is about 1097.5707081327.

Adding to 1322201131 its reverse (1311022231), we get a palindrome (2633223362).

The spelling of 1322201131 in words is "one billion, three hundred twenty-two million, two hundred one thousand, one hundred thirty-one".