20110100021201 has 8 divisors (see below), whose sum is σ = 20803664197800. Its totient is φ = 19416543341440.

The previous prime is 20110100021131. The next prime is 20110100021203. The reversal of 20110100021201 is 10212000101102.

It can be written as a sum of positive squares in 4 ways, for example, as 11684084403601 + 8426015617600 = 3418199^2 + 2902760^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20110100021201 - 2²² = 20110095826897 is a prime.

It is a super-2 number, since 2×20110100021201² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20110100021203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3883055 + ... + 7436283.

It is an arithmetic number, because the mean of its divisors is an integer number (2600458024725).

Almost surely, 2^{20110100021201} is an apocalyptic number.

It is an amenable number.

20110100021201 is a deficient number, since it is larger than the sum of its proper divisors (693564176599).

20110100021201 is a wasteful number, since it uses less digits than its factorization.

20110100021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3748419.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20110100021201 its reverse (10212000101102), we get a palindrome (30322100122303).

The spelling of 20110100021201 in words is "twenty trillion, one hundred ten billion, one hundred million, twenty-one thousand, two hundred one".