20122122112001 has 16 divisors (see below), whose sum is σ = 24797727247104. Its totient is φ = 15900203738304.

The previous prime is 20122122111989. The next prime is 20122122112007. The reversal of 20122122112001 is 10021122122102.

It is a cyclic number.

It is not a de Polignac number, because 20122122112001 - 2¹⁰ = 20122122110977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20122122112007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142958261 + ... + 143098946.

It is an arithmetic number, because the mean of its divisors is an integer number (1549857952944).

Almost surely, 2^{20122122112001} is an apocalyptic number.

It is an amenable number.

20122122112001 is a deficient number, since it is larger than the sum of its proper divisors (4675605135103).

20122122112001 is a wasteful number, since it uses less digits than its factorization.

20122122112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286058000.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20122122112001 its reverse (10021122122102), we get a palindrome (30143244234103).

The spelling of 20122122112001 in words is "twenty trillion, one hundred twenty-two billion, one hundred twenty-two million, one hundred twelve thousand, one".