100212211110021 has 16 divisors (see below), whose sum is σ = 137939501081088. Its totient is φ = 64646937720000.

The previous prime is 100212211109993. The next prime is 100212211110157. The reversal of 100212211110021 is 120011112212001.

It is a happy number.

It is not a de Polignac number, because 100212211110021 - 2¹¹ = 100212211107973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100212211110721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49856730 + ... + 51827771.

It is an arithmetic number, because the mean of its divisors is an integer number (8621218817568).

Almost surely, 2^{100212211110021} is an apocalyptic number.

It is an amenable number.

100212211110021 is a deficient number, since it is larger than the sum of its proper divisors (37727289971067).

100212211110021 is a wasteful number, since it uses less digits than its factorization.

100212211110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101695132.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 100212211110021 its reverse (120011112212001), we get a palindrome (220223323322022).

The spelling of 100212211110021 in words is "one hundred trillion, two hundred twelve billion, two hundred eleven million, one hundred ten thousand, twenty-one".