53221012236 has 36 divisors (see below), whose sum is σ = 153749591632. Its totient is φ = 15206003424.

The previous prime is 53221012183. The next prime is 53221012249. The reversal of 53221012236 is 63221012235.

It is a happy number.

53221012236 is a `hidden beast` number, since 5 + 322 + 101 + 2 + 236 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×53221012236² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105596995 + ... + 105597498.

Almost surely, 2^53221012236 is an apocalyptic number.

It is an amenable number.

53221012236 is an abundant number, since it is smaller than the sum of its proper divisors (100528579396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53221012236 is a wasteful number, since it uses less digits than its factorization.

53221012236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211194510 (or 211194505 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Subtracting 53221012236 from its reverse (63221012235), we obtain a palindrome (9999999999).

It can be divided in two parts, 532210 and 12236, that added together give a triangular number (544446 = T₁₀₄₃).

The spelling of 53221012236 in words is "fifty-three billion, two hundred twenty-one million, twelve thousand, two hundred thirty-six".