22061243210521 has 8 divisors (see below), whose sum is σ = 22781061561600. Its totient is φ = 21341935193520.

The previous prime is 22061243210497. The next prime is 22061243210581. The reversal of 22061243210521 is 12501234216022.

It is a happy number.

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 22061243210521 - 2²¹ = 22061241113369 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (22061243210581) 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, 127495651 + ... + 127668568.

It is an arithmetic number, because the mean of its divisors is an integer number (2847632695200).

Almost surely, 2^{22061243210521} is an apocalyptic number.

It is an amenable number.

22061243210521 is a deficient number, since it is larger than the sum of its proper divisors (719818351079).

22061243210521 is a wasteful number, since it uses less digits than its factorization.

22061243210521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255167039.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 22061243210521 its reverse (12501234216022), we get a palindrome (34562477426543).

The spelling of 22061243210521 in words is "twenty-two trillion, sixty-one billion, two hundred forty-three million, two hundred ten thousand, five hundred twenty-one".