100121210011211 has 16 divisors (see below), whose sum is σ = 100350674731008. Its totient is φ = 99892013676000.

The previous prime is 100121210011181. The next prime is 100121210011231. The reversal of 100121210011211 is 112110012121001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100121210011211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100121210011231) 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, 10482793886 + ... + 10482803436.

It is an arithmetic number, because the mean of its divisors is an integer number (6271917170688).

Almost surely, 2^{100121210011211} is an apocalyptic number.

100121210011211 is a deficient number, since it is larger than the sum of its proper divisors (229464719797).

100121210011211 is an equidigital number, since it uses as much as digits as its factorization.

100121210011211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21202.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 100121210011211 its reverse (112110012121001), we get a palindrome (212231222132212).

The spelling of 100121210011211 in words is "one hundred trillion, one hundred twenty-one billion, two hundred ten million, eleven thousand, two hundred eleven".