100212012011 has 4 divisors (see below), whose sum is σ = 100884576000. Its totient is φ = 99539448024.

The previous prime is 100212011993. The next prime is 100212012031. The reversal of 100212012011 is 110210212001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110210212001 = 23279 ⋅4734319.

It is a cyclic number.

It is not a de Polignac number, because 100212012011 - 2¹⁴ = 100211995627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100212011983 and 100212012001.

It is not an unprimeable number, because it can be changed into a prime (100212012031) 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 3 ways as a sum of consecutive naturals, for example, 336281771 + ... + 336282068.

It is an arithmetic number, because the mean of its divisors is an integer number (25221144000).

Almost surely, 2^100212012011 is an apocalyptic number.

100212012011 is a deficient number, since it is larger than the sum of its proper divisors (672563989).

100212012011 is an equidigital number, since it uses as much as digits as its factorization.

100212012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672563988.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 100212012011 its reverse (110210212001), we get a palindrome (210422224012).

The spelling of 100212012011 in words is "one hundred billion, two hundred twelve million, twelve thousand, eleven".