20122111101001 has 8 divisors (see below), whose sum is σ = 24765675201344. Its totient is φ = 15920791200720.

The previous prime is 20122111100983. The next prime is 20122111101013. The reversal of 20122111101001 is 10010111122102.

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 20122111101001 - 2²⁹ = 20121574230089 is a prime.

It is a super-2 number, since 2×20122111101001² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (20122111101041) 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 7 ways as a sum of consecutive naturals, for example, 110561049915 + ... + 110561050096.

It is an arithmetic number, because the mean of its divisors is an integer number (3095709400168).

Almost surely, 2^{20122111101001} is an apocalyptic number.

It is an amenable number.

20122111101001 is a deficient number, since it is larger than the sum of its proper divisors (4643564100343).

20122111101001 is a wasteful number, since it uses less digits than its factorization.

20122111101001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221122100031.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 20122111101001 its reverse (10010111122102), we get a palindrome (30132222223103).

The spelling of 20122111101001 in words is "twenty trillion, one hundred twenty-two billion, one hundred eleven million, one hundred one thousand, one".