1131022322221 has 16 divisors (see below), whose sum is σ = 1242883212480. Its totient is φ = 1020670168320.

The previous prime is 1131022322207. The next prime is 1131022322231. The reversal of 1131022322221 is 1222232201311.

It is not a de Polignac number, because 1131022322221 - 2⁵ = 1131022322189 is a prime.

It is a super-2 number, since 2×1131022322221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1131022322192 and 1131022322201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131022322231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12604711 + ... + 12694123.

It is an arithmetic number, because the mean of its divisors is an integer number (77680200780).

Almost surely, 2^{1131022322221} is an apocalyptic number.

1131022322221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1131022322221 is a deficient number, since it is larger than the sum of its proper divisors (111860890259).

1131022322221 is a wasteful number, since it uses less digits than its factorization.

1131022322221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97836.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1131022322221 its reverse (1222232201311), we get a palindrome (2353254523532).

The spelling of 1131022322221 in words is "one trillion, one hundred thirty-one billion, twenty-two million, three hundred twenty-two thousand, two hundred twenty-one".