221050502543210 has 32 divisors (see below), whose sum is σ = 407269343606400. Its totient is φ = 86337367720128.

The previous prime is 221050502543209. The next prime is 221050502543243. The reversal of 221050502543210 is 12345205050122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77616110 + ... + 80413689.

It is an arithmetic number, because the mean of its divisors is an integer number (12727166987700).

Almost surely, 2^{221050502543210} is an apocalyptic number.

221050502543210 is a deficient number, since it is larger than the sum of its proper divisors (186218841063190).

221050502543210 is a wasteful number, since it uses less digits than its factorization.

221050502543210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158033102.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 221050502543210 its reverse (12345205050122), we get a palindrome (233395707593332).

The spelling of 221050502543210 in words is "two hundred twenty-one trillion, fifty billion, five hundred two million, five hundred forty-three thousand, two hundred ten".