21011201000101 has 8 divisors (see below), whose sum is σ = 22628397060864. Its totient is φ = 19394140629360.

The previous prime is 21011201000033. The next prime is 21011201000147. The reversal of 21011201000101 is 10100010211012.

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 21011201000101 - 2³⁷ = 20873762046629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21011201000701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33600781 + ... + 34220386.

It is an arithmetic number, because the mean of its divisors is an integer number (2828549632608).

Almost surely, 2^{21011201000101} is an apocalyptic number.

It is an amenable number.

21011201000101 is a deficient number, since it is larger than the sum of its proper divisors (1617196060763).

21011201000101 is a wasteful number, since it uses less digits than its factorization.

21011201000101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67845011.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 21011201000101 its reverse (10100010211012), we get a palindrome (31111211211113).

The spelling of 21011201000101 in words is "twenty-one trillion, eleven billion, two hundred one million, one hundred one", and thus it is an aban number.