20122112122101 has 12 divisors (see below), whose sum is σ = 31707570616800. Its totient is φ = 12195219467880.

The previous prime is 20122112122051. The next prime is 20122112122103. The reversal of 20122112122101 is 10122121122102.

20122112122101 is a `hidden beast` number, since 20 + 1 + 221 + 1 + 212 + 210 + 1 = 666.

It is not a de Polignac number, because 20122112122101 - 2¹¹ = 20122112120053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122112122103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101626828801 + ... + 101626828998.

It is an arithmetic number, because the mean of its divisors is an integer number (2642297551400).

Almost surely, 2^{20122112122101} is an apocalyptic number.

It is an amenable number.

20122112122101 is a deficient number, since it is larger than the sum of its proper divisors (11585458494699).

20122112122101 is a wasteful number, since it uses less digits than its factorization.

20122112122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203253657816 (or 203253657813 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 20122112122101 its reverse (10122121122102), we get a palindrome (30244233244203).

Subtracting from 20122112122101 its reverse (10122121122102), we obtain a palindrome (9999990999999).

The spelling of 20122112122101 in words is "twenty trillion, one hundred twenty-two billion, one hundred twelve million, one hundred twenty-two thousand, one hundred one".