21112122100201 has 8 divisors (see below), whose sum is σ = 23375158255584. Its totient is φ = 18906377999520.

The previous prime is 21112122100193. The next prime is 21112122100247. The reversal of 21112122100201 is 10200122121112.

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

It is not a de Polignac number, because 21112122100201 - 2³ = 21112122100193 is a prime.

It is a super-3 number, since 3×21112122100201³ (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 (21112122100291) 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, 14323012900 + ... + 14323014373.

It is an arithmetic number, because the mean of its divisors is an integer number (2921894781948).

Almost surely, 2^{21112122100201} is an apocalyptic number.

It is an amenable number.

21112122100201 is a deficient number, since it is larger than the sum of its proper divisors (2263036155383).

21112122100201 is a wasteful number, since it uses less digits than its factorization.

21112122100201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28646027351.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21112122100201 its reverse (10200122121112), we get a palindrome (31312244221313).

It can be divided in two parts, 211121 and 22100201, that added together give a palindrome (22311322).

The spelling of 21112122100201 in words is "twenty-one trillion, one hundred twelve billion, one hundred twenty-two million, one hundred thousand, two hundred one".