221242201010 has 32 divisors (see below), whose sum is σ = 403491801600. Its totient is φ = 87330110400.

The previous prime is 221242200997. The next prime is 221242201051. The reversal of 221242201010 is 10102242122.

It is a super-2 number, since 2×221242201010² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 221242201010.

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, 1428131 + ... + 1575449.

It is an arithmetic number, because the mean of its divisors is an integer number (12609118800).

Almost surely, 2^221242201010 is an apocalyptic number.

221242201010 is a deficient number, since it is larger than the sum of its proper divisors (182249600590).

221242201010 is a wasteful number, since it uses less digits than its factorization.

221242201010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149306.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 221242201010 its reverse (10102242122), we get a palindrome (231344443132).

The spelling of 221242201010 in words is "two hundred twenty-one billion, two hundred forty-two million, two hundred one thousand, ten".