100121111212011 has 32 divisors (see below), whose sum is σ = 142059596294400. Its totient is φ = 62602694985600.

The previous prime is 100121111211983. The next prime is 100121111212037. The reversal of 100121111212011 is 110212111121001.

It is not a de Polignac number, because 100121111212011 - 2¹⁰ = 100121111210987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100121111212081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23131165 + ... + 27116286.

It is an arithmetic number, because the mean of its divisors is an integer number (4439362384200).

Almost surely, 2^{100121111212011} is an apocalyptic number.

100121111212011 is a deficient number, since it is larger than the sum of its proper divisors (41938485082389).

100121111212011 is a wasteful number, since it uses less digits than its factorization.

100121111212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50248139.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 100121111212011 its reverse (110212111121001), we get a palindrome (210333222333012).

The spelling of 100121111212011 in words is "one hundred trillion, one hundred twenty-one billion, one hundred eleven million, two hundred twelve thousand, eleven".