100121011822494 has 144 divisors (see below), whose sum is σ = 246640208828832. Its totient is φ = 29175387677568.

The previous prime is 100121011822493. The next prime is 100121011822529. The reversal of 100121011822494 is 494228110121001.

100121011822494 is a `hidden beast` number, since 10 + 0 + 1 + 21 + 0 + 118 + 22 + 494 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100121011822493) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 256352407 + ... + 256742669.

It is an arithmetic number, because the mean of its divisors is an integer number (1712779227978).

Almost surely, 2^{100121011822494} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100121011822494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123320104414416).

100121011822494 is an abundant number, since it is smaller than the sum of its proper divisors (146519197006338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100121011822494 is a wasteful number, since it uses less digits than its factorization.

100121011822494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393359 (or 393337 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

Adding to 100121011822494 its reverse (494228110121001), we get a palindrome (594349121943495).

The spelling of 100121011822494 in words is "one hundred trillion, one hundred twenty-one billion, eleven million, eight hundred twenty-two thousand, four hundred ninety-four".