20011110100121 has 8 divisors (see below), whose sum is σ = 24073515910080. Its totient is φ = 16249623239088.

The previous prime is 20011110100103. The next prime is 20011110100127. The reversal of 20011110100121 is 12100101111002.

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

It is a cyclic number.

It is not a de Polignac number, because 20011110100121 - 2³⁰ = 20010036358297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20011110100127) 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 7 ways as a sum of consecutive naturals, for example, 75229737086 + ... + 75229737351.

It is an arithmetic number, because the mean of its divisors is an integer number (3009189488760).

Almost surely, 2^{20011110100121} is an apocalyptic number.

It is an amenable number.

20011110100121 is a deficient number, since it is larger than the sum of its proper divisors (4062405809959).

20011110100121 is a wasteful number, since it uses less digits than its factorization.

20011110100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150459474463.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 20011110100121 its reverse (12100101111002), we get a palindrome (32111211211123).

The spelling of 20011110100121 in words is "twenty trillion, eleven billion, one hundred ten million, one hundred thousand, one hundred twenty-one".