21202011000101 has 16 divisors (see below), whose sum is σ = 22574717670960. Its totient is φ = 19843266723840.

The previous prime is 21202011000077. The next prime is 21202011000113. The reversal of 21202011000101 is 10100011020212.

It can be written as a sum of positive squares in 8 ways, for example, as 118577611201 + 21083433388900 = 344351^2 + 4591670^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21202011000101 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21202011000151) 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, 47684525 + ... + 48127101.

It is an arithmetic number, because the mean of its divisors is an integer number (1410919854435).

Almost surely, 2^{21202011000101} is an apocalyptic number.

It is an amenable number.

21202011000101 is a deficient number, since it is larger than the sum of its proper divisors (1372706670859).

21202011000101 is a wasteful number, since it uses less digits than its factorization.

21202011000101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458344.

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

Adding to 21202011000101 its reverse (10100011020212), we get a palindrome (31302022020313).

The spelling of 21202011000101 in words is "twenty-one trillion, two hundred two billion, eleven million, one hundred one", and thus it is an aban number.