100221210202 has 16 divisors (see below), whose sum is σ = 159270324840. Its totient is φ = 47134637568.

The previous prime is 100221210197. The next prime is 100221210227. The reversal of 100221210202 is 202012122001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 90300851001 + 9920359201 = 300501^2 + 99601^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 826323 + ... + 939814.

Almost surely, 2^100221210202 is an apocalyptic number.

100221210202 is a deficient number, since it is larger than the sum of its proper divisors (59049114638).

100221210202 is a wasteful number, since it uses less digits than its factorization.

100221210202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1767825.

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

Adding to 100221210202 its reverse (202012122001), we get a palindrome (302233332203).

The spelling of 100221210202 in words is "one hundred billion, two hundred twenty-one million, two hundred ten thousand, two hundred two".