1211413332021 has 16 divisors (see below), whose sum is σ = 1618681075200. Its totient is φ = 805878560448.

The previous prime is 1211413332007. The next prime is 1211413332049. The reversal of 1211413332021 is 1202333141121.

It is not a de Polignac number, because 1211413332021 - 2¹⁸ = 1211413069877 is a prime.

It is a super-3 number, since 3×1211413332021³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1211413331982 and 1211413332000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211413332001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3530875 + ... + 3858743.

It is an arithmetic number, because the mean of its divisors is an integer number (101167567200).

Almost surely, 2^{1211413332021} is an apocalyptic number.

It is an amenable number.

1211413332021 is a deficient number, since it is larger than the sum of its proper divisors (407267743179).

1211413332021 is a wasteful number, since it uses less digits than its factorization.

1211413332021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330508.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 1211413332021 its reverse (1202333141121), we get a palindrome (2413746473142).

The spelling of 1211413332021 in words is "one trillion, two hundred eleven billion, four hundred thirteen million, three hundred thirty-two thousand, twenty-one".