2213511324661 has 8 divisors (see below), whose sum is σ = 2724321630464. Its totient is φ = 1751349619440.

The previous prime is 2213511324617. The next prime is 2213511324671. The reversal of 2213511324661 is 1664231153122.

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

It is a cyclic number.

It is not a de Polignac number, because 2213511324661 - 2⁷ = 2213511324533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2213511324661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213511324671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12162150045 + ... + 12162150226.

It is an arithmetic number, because the mean of its divisors is an integer number (340540203808).

Almost surely, 2^{2213511324661} is an apocalyptic number.

It is an amenable number.

2213511324661 is a deficient number, since it is larger than the sum of its proper divisors (510810305803).

2213511324661 is a wasteful number, since it uses less digits than its factorization.

2213511324661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24324300291.

The product of its digits is 51840, while the sum is 37.

Adding to 2213511324661 its reverse (1664231153122), we get a palindrome (3877742477783).

The spelling of 2213511324661 in words is "two trillion, two hundred thirteen billion, five hundred eleven million, three hundred twenty-four thousand, six hundred sixty-one".