100221212211 has 16 divisors (see below), whose sum is σ = 133924337664. Its totient is φ = 66666245184.

The previous prime is 100221212209. The next prime is 100221212213. The reversal of 100221212211 is 112212122001.

It is an interprime number because it is at equal distance from previous prime (100221212209) and next prime (100221212213).

It is not a de Polignac number, because 100221212211 - 2¹ = 100221212209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100221212213) 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, 3285150 + ... + 3315516.

It is an arithmetic number, because the mean of its divisors is an integer number (8370271104).

Almost surely, 2^100221212211 is an apocalyptic number.

100221212211 is a deficient number, since it is larger than the sum of its proper divisors (33703125453).

100221212211 is a wasteful number, since it uses less digits than its factorization.

100221212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32770.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 100221212211 its reverse (112212122001), we get a palindrome (212433334212).

The spelling of 100221212211 in words is "one hundred billion, two hundred twenty-one million, two hundred twelve thousand, two hundred eleven".