1322011010021 has 8 divisors (see below), whose sum is σ = 1437800246904. Its totient is φ = 1208235499200.

The previous prime is 1322011010011. The next prime is 1322011010029. The reversal of 1322011010021 is 1200101102231.

It can be written as a sum of positive squares in 4 ways, for example, as 170392281796 + 1151618728225 = 412786^2 + 1073135^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1322011010021 is a prime.

It is a super-2 number, since 2×1322011010021² (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 = 1322011009978 and 1322011010005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322011010029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 503430146 + ... + 503432771.

It is an arithmetic number, because the mean of its divisors is an integer number (179725030863).

Almost surely, 2^{1322011010021} is an apocalyptic number.

It is an amenable number.

1322011010021 is a deficient number, since it is larger than the sum of its proper divisors (115789236883).

1322011010021 is a wasteful number, since it uses less digits than its factorization.

1322011010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006863031.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1322011010021 its reverse (1200101102231), we get a palindrome (2522112112252).

The spelling of 1322011010021 in words is "one trillion, three hundred twenty-two billion, eleven million, ten thousand, twenty-one".