20012112112101 has 8 divisors (see below), whose sum is σ = 26730720669024. Its totient is φ = 13317455814960.

The previous prime is 20012112112061. The next prime is 20012112112117. The reversal of 20012112112101 is 10121121121002.

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 20012112112101 - 2¹⁹ = 20012111587813 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012112112001) 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, 5988062995 + ... + 5988066336.

It is an arithmetic number, because the mean of its divisors is an integer number (3341340083628).

Almost surely, 2^{20012112112101} is an apocalyptic number.

It is an amenable number.

20012112112101 is a deficient number, since it is larger than the sum of its proper divisors (6718608556923).

20012112112101 is a wasteful number, since it uses less digits than its factorization.

20012112112101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11976129891.

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

Adding to 20012112112101 its reverse (10121121121002), we get a palindrome (30133233233103).

The spelling of 20012112112101 in words is "twenty trillion, twelve billion, one hundred twelve million, one hundred twelve thousand, one hundred one".