221200212010 has 32 divisors (see below), whose sum is σ = 411143040000. Its totient is φ = 85596977280.

The previous prime is 221200212001. The next prime is 221200212019. The reversal of 221200212010 is 10212002122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (221200212001) and next prime (221200212019).

It is not an unprimeable number, because it can be changed into a prime (221200212019) 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, 810726 + ... + 1048654.

It is an arithmetic number, because the mean of its divisors is an integer number (12848220000).

Almost surely, 2^221200212010 is an apocalyptic number.

221200212010 is a deficient number, since it is larger than the sum of its proper divisors (189942827990).

221200212010 is a wasteful number, since it uses less digits than its factorization.

221200212010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240966.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 221200212010 its reverse (10212002122), we get a palindrome (231412214132).

The spelling of 221200212010 in words is "two hundred twenty-one billion, two hundred million, two hundred twelve thousand, ten".