100122212121211 has 16 divisors (see below), whose sum is σ = 121159586013120. Its totient is φ = 80768663055360.

The previous prime is 100122212121187. The next prime is 100122212121241. The reversal of 100122212121211 is 112121212221001.

It is a happy number.

It is not a de Polignac number, because 100122212121211 - 2⁹ = 100122212120699 is a prime.

It is a super-2 number, since 2×100122212121211² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100122212121241) 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, 7043346 + ... + 15806743.

It is an arithmetic number, because the mean of its divisors is an integer number (7572474125820).

Almost surely, 2^{100122212121211} is an apocalyptic number.

100122212121211 is a deficient number, since it is larger than the sum of its proper divisors (21037373891909).

100122212121211 is a wasteful number, since it uses less digits than its factorization.

100122212121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22886934.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 100122212121211 its reverse (112121212221001), we get a palindrome (212243424342212).

The spelling of 100122212121211 in words is "one hundred trillion, one hundred twenty-two billion, two hundred twelve million, one hundred twenty-one thousand, two hundred eleven".