20110021112001 has 16 divisors (see below), whose sum is σ = 28404380001024. Its totient is φ = 12611936035584.

The previous prime is 20110021111997. The next prime is 20110021112057. The reversal of 20110021112001 is 10021112001102.

It is not a de Polignac number, because 20110021112001 - 2² = 20110021111997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20110021122001) 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, 95462926 + ... + 95673351.

It is an arithmetic number, because the mean of its divisors is an integer number (1775273750064).

Almost surely, 2^{20110021112001} is an apocalyptic number.

It is an amenable number.

20110021112001 is a deficient number, since it is larger than the sum of its proper divisors (8294358889023).

20110021112001 is a wasteful number, since it uses less digits than its factorization.

20110021112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191138360.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20110021112001 its reverse (10021112001102), we get a palindrome (30131133113103).

The spelling of 20110021112001 in words is "twenty trillion, one hundred ten billion, twenty-one million, one hundred twelve thousand, one".