135222421566016 has 28 divisors (see below), whose sum is σ = 268332364284160. Its totient is φ = 67611117179520.

The previous prime is 135222421565983. The next prime is 135222421566017. The reversal of 135222421566016 is 610665124222531.

It is a super-2 number, since 2×135222421566016² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135222421566017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82428661 + ... + 84053131.

Almost surely, 2^{135222421566016} is an apocalyptic number.

135222421566016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

135222421566016 is a deficient number, since it is larger than the sum of its proper divisors (133109942718144).

135222421566016 is a wasteful number, since it uses less digits than its factorization.

135222421566016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2925122 (or 2925112 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 46.

Adding to 135222421566016 its reverse (610665124222531), we get a palindrome (745887545788547).

The spelling of 135222421566016 in words is "one hundred thirty-five trillion, two hundred twenty-two billion, four hundred twenty-one million, five hundred sixty-six thousand, sixteen".