221102100010 has 64 divisors (see below), whose sum is σ = 437518247040. Its totient is φ = 79780250880.

The previous prime is 221102100007. The next prime is 221102100013. The reversal of 221102100010 is 10001201122.

It is an interprime number because it is at equal distance from previous prime (221102100007) and next prime (221102100013).

It is a super-2 number, since 2×221102100010² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a self number, because there is not a number n which added to its sum of digits gives 221102100010.

It is not an unprimeable number, because it can be changed into a prime (221102100013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54017524 + ... + 54021616.

It is an arithmetic number, because the mean of its divisors is an integer number (6836222610).

Almost surely, 2^221102100010 is an apocalyptic number.

221102100010 is a deficient number, since it is larger than the sum of its proper divisors (216416147030).

221102100010 is a wasteful number, since it uses less digits than its factorization.

221102100010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7783.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 221102100010 its reverse (10001201122), we get a palindrome (231103301132).

The spelling of 221102100010 in words is "two hundred twenty-one billion, one hundred two million, one hundred thousand, ten".