20122112100001 has 4 divisors (see below), whose sum is σ = 21181170631600. Its totient is φ = 19063053568404.

The previous prime is 20122112099899. The next prime is 20122112100067. The reversal of 20122112100001 is 10000121122102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20122112100001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20122112103001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 529529265771 + ... + 529529265808.

It is an arithmetic number, because the mean of its divisors is an integer number (5295292657900).

Almost surely, 2^{20122112100001} is an apocalyptic number.

It is an amenable number.

20122112100001 is a deficient number, since it is larger than the sum of its proper divisors (1059058531599).

20122112100001 is a wasteful number, since it uses less digits than its factorization.

20122112100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059058531598.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20122112100001 its reverse (10000121122102), we get a palindrome (30122233222103).

The spelling of 20122112100001 in words is "twenty trillion, one hundred twenty-two billion, one hundred twelve million, one hundred thousand, one".