2212021265565 has 32 divisors (see below), whose sum is σ = 3545043546240. Its totient is φ = 1177809647616.

The previous prime is 2212021265557. The next prime is 2212021265579. The reversal of 2212021265565 is 5655621202122.

It is not a de Polignac number, because 2212021265565 - 2³ = 2212021265557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24585381 + ... + 24675189.

It is an arithmetic number, because the mean of its divisors is an integer number (110782610820).

Almost surely, 2^{2212021265565} is an apocalyptic number.

It is an amenable number.

2212021265565 is a deficient number, since it is larger than the sum of its proper divisors (1333022280675).

2212021265565 is a wasteful number, since it uses less digits than its factorization.

2212021265565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92493.

The product of its (nonzero) digits is 144000, while the sum is 39.

Adding to 2212021265565 its reverse (5655621202122), we get a palindrome (7867642467687).

The spelling of 2212021265565 in words is "two trillion, two hundred twelve billion, twenty-one million, two hundred sixty-five thousand, five hundred sixty-five".