22150517064421 has 8 divisors (see below), whose sum is σ = 22269751202304. Its totient is φ = 22031316914880.

The previous prime is 22150517064341. The next prime is 22150517064427. The reversal of 22150517064421 is 12446071505122.

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 22150517064421 - 2²⁵ = 22150483509989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22150517064427) 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, 7189620 + ... + 9797533.

It is an arithmetic number, because the mean of its divisors is an integer number (2783718900288).

Almost surely, 2^{22150517064421} is an apocalyptic number.

It is an amenable number.

22150517064421 is a deficient number, since it is larger than the sum of its proper divisors (119234137883).

22150517064421 is a wasteful number, since it uses less digits than its factorization.

22150517064421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16994171.

The product of its (nonzero) digits is 134400, while the sum is 40.

Adding to 22150517064421 its reverse (12446071505122), we get a palindrome (34596588569543).

The spelling of 22150517064421 in words is "twenty-two trillion, one hundred fifty billion, five hundred seventeen million, sixty-four thousand, four hundred twenty-one".