21120200200101 has 24 divisors (see below), whose sum is σ = 29945129832640. Its totient is φ = 13238185669632.

The previous prime is 21120200200081. The next prime is 21120200200117. The reversal of 21120200200101 is 10100200202112.

It is not a de Polignac number, because 21120200200101 - 2¹⁵ = 21120200167333 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21120200200301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11757316 + ... + 13434093.

Almost surely, 2^{21120200200101} is an apocalyptic number.

It is an amenable number.

21120200200101 is a deficient number, since it is larger than the sum of its proper divisors (8824929632539).

21120200200101 is a wasteful number, since it uses less digits than its factorization.

21120200200101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25192413 (or 25192396 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21120200200101 its reverse (10100200202112), we get a palindrome (31220400402213).

The spelling of 21120200200101 in words is "twenty-one trillion, one hundred twenty billion, two hundred million, two hundred thousand, one hundred one".