221640314053050 has 36 divisors (see below), whose sum is σ = 595473643757070. Its totient is φ = 59104083747360.

The previous prime is 221640314052977. The next prime is 221640314053139. The reversal of 221640314053050 is 50350413046122.

221640314053050 is a `hidden beast` number, since 2 + 2 + 1 + 6 + 4 + 0 + 31 + 40 + 530 + 50 = 666.

221640314053050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 196878474132921 + 24761839920129 = 14031339^2 + 4976127^2 .

It is a junction number, because it is equal to n+sod(n) for n = 221640314052996 and 221640314053014.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 246267015165 + ... + 246267016064.

Almost surely, 2^{221640314053050} is an apocalyptic number.

221640314053050 is an abundant number, since it is smaller than the sum of its proper divisors (373833329704020).

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

221640314053050 is a wasteful number, since it uses less digits than its factorization.

221640314053050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492534031247 (or 492534031239 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 221640314053050 its reverse (50350413046122), we get a palindrome (271990727099172).

The spelling of 221640314053050 in words is "two hundred twenty-one trillion, six hundred forty billion, three hundred fourteen million, fifty-three thousand, fifty".