221412433210 has 24 divisors (see below), whose sum is σ = 412759127196. Its totient is φ = 85511005440.

The previous prime is 221412433201. The next prime is 221412433219. The reversal of 221412433210 is 12334214122.

It is an interprime number because it is at equal distance from previous prime (221412433201) and next prime (221412433219).

It can be written as a sum of positive squares in 6 ways, for example, as 162885695281 + 58526737929 = 403591^2 + 241923^2 .

It is not an unprimeable number, because it can be changed into a prime (221412433219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13155231 + ... + 13172050.

Almost surely, 2^221412433210 is an apocalyptic number.

221412433210 is a deficient number, since it is larger than the sum of its proper divisors (191346693986).

221412433210 is a wasteful number, since it uses less digits than its factorization.

221412433210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26327346 (or 26327317 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 221412433210 its reverse (12334214122), we get a palindrome (233746647332).

The spelling of 221412433210 in words is "two hundred twenty-one billion, four hundred twelve million, four hundred thirty-three thousand, two hundred ten".