1322131110021 has 6 divisors (see below), whose sum is σ = 1909744936710. Its totient is φ = 881420740008.

The previous prime is 1322131110019. The next prime is 1322131110049. The reversal of 1322131110021 is 1200111312231.

1322131110021 is a `hidden beast` number, since 1 + 322 + 1 + 311 + 10 + 0 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1045528745121 + 276602364900 = 1022511^2 + 525930^2 .

It is not a de Polignac number, because 1322131110021 - 2¹ = 1322131110019 is a prime.

It is a super-3 number, since 3×1322131110021³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1322131109976 and 1322131110003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322131110121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73451728326 + ... + 73451728343.

It is an arithmetic number, because the mean of its divisors is an integer number (318290822785).

Almost surely, 2^{1322131110021} is an apocalyptic number.

It is an amenable number.

1322131110021 is a deficient number, since it is larger than the sum of its proper divisors (587613826689).

1322131110021 is a wasteful number, since it uses less digits than its factorization.

1322131110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146903456675 (or 146903456672 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1322131110021 its reverse (1200111312231), we get a palindrome (2522242422252).

The spelling of 1322131110021 in words is "one trillion, three hundred twenty-two billion, one hundred thirty-one million, one hundred ten thousand, twenty-one".