100121122012011 has 8 divisors (see below), whose sum is σ = 134742444577344. Its totient is φ = 66123607060680.

The previous prime is 100121122012001. The next prime is 100121122012027. The reversal of 100121122012011 is 110210221121001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100121122012011 - 2⁹ = 100121122011499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100121122012001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155951903125 + ... + 155951903766.

It is an arithmetic number, because the mean of its divisors is an integer number (16842805572168).

Almost surely, 2^{100121122012011} is an apocalyptic number.

100121122012011 is a deficient number, since it is larger than the sum of its proper divisors (34621322565333).

100121122012011 is a wasteful number, since it uses less digits than its factorization.

100121122012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311903807001.

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

Adding to 100121122012011 its reverse (110210221121001), we get a palindrome (210331343133012).

The spelling of 100121122012011 in words is "one hundred trillion, one hundred twenty-one billion, one hundred twenty-two million, twelve thousand, eleven".