20122111210001 has 4 divisors (see below), whose sum is σ = 20127341812032. Its totient is φ = 20116880607972.

The previous prime is 20122111209989. The next prime is 20122111210037. The reversal of 20122111210001 is 10001211122102.

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-20122111210001 is a prime.

It is a super-3 number, since 3×20122111210001³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20122111212001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2615295245 + ... + 2615302938.

It is an arithmetic number, because the mean of its divisors is an integer number (5031835453008).

Almost surely, 2^{20122111210001} is an apocalyptic number.

It is an amenable number.

20122111210001 is a deficient number, since it is larger than the sum of its proper divisors (5230602031).

20122111210001 is an equidigital number, since it uses as much as digits as its factorization.

20122111210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5230602030.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20122111210001 its reverse (10001211122102), we get a palindrome (30123322332103).

The spelling of 20122111210001 in words is "twenty trillion, one hundred twenty-two billion, one hundred eleven million, two hundred ten thousand, one".