221472608236 has 48 divisors (see below), whose sum is σ = 425441237760. Its totient is φ = 100045056320.

The previous prime is 221472608233. The next prime is 221472608243. The reversal of 221472608236 is 632806274122.

It is a junction number, because it is equal to n+sod(n) for n = 221472608192 and 221472608201.

It is not an unprimeable number, because it can be changed into a prime (221472608233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4825830 + ... + 4871506.

It is an arithmetic number, because the mean of its divisors is an integer number (8863359120).

Almost surely, 2^221472608236 is an apocalyptic number.

It is an amenable number.

221472608236 is a deficient number, since it is larger than the sum of its proper divisors (203968629524).

221472608236 is a wasteful number, since it uses less digits than its factorization.

221472608236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46374 (or 46372 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 43.

The spelling of 221472608236 in words is "two hundred twenty-one billion, four hundred seventy-two million, six hundred eight thousand, two hundred thirty-six".