22150010660521 has 8 divisors (see below), whose sum is σ = 22556171751104. Its totient is φ = 21745238155920.

The previous prime is 22150010660431. The next prime is 22150010660587. The reversal of 22150010660521 is 12506601005122.

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 22150010660521 - 2²⁹ = 22149473789609 is a prime.

It is a super-2 number, since 2×22150010660521² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22150010660021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347114301 + ... + 347178106.

It is an arithmetic number, because the mean of its divisors is an integer number (2819521468888).

Almost surely, 2^{22150010660521} is an apocalyptic number.

It is an amenable number.

22150010660521 is a deficient number, since it is larger than the sum of its proper divisors (406161090583).

22150010660521 is an equidigital number, since it uses as much as digits as its factorization.

22150010660521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694292991.

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 22150010660521 its reverse (12506601005122), we get a palindrome (34656611665643).

The spelling of 22150010660521 in words is "twenty-two trillion, one hundred fifty billion, ten million, six hundred sixty thousand, five hundred twenty-one".