21202010011101 has 8 divisors (see below), whose sum is σ = 28269370882720. Its totient is φ = 14134661240112.

The previous prime is 21202010011073. The next prime is 21202010011103. The reversal of 21202010011101 is 10111001020212.

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

It is not a de Polignac number, because 21202010011101 - 2⁹ = 21202010010589 is a prime.

It is a super-2 number, since 2×21202010011101² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21202010011103) 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, 2509986 + ... + 6978828.

It is an arithmetic number, because the mean of its divisors is an integer number (3533671360340).

Almost surely, 2^{21202010011101} is an apocalyptic number.

It is an amenable number.

21202010011101 is a deficient number, since it is larger than the sum of its proper divisors (7067360871619).

21202010011101 is a wasteful number, since it uses less digits than its factorization.

21202010011101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6050315.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 21202010011101 its reverse (10111001020212), we get a palindrome (31313011031313).

The spelling of 21202010011101 in words is "twenty-one trillion, two hundred two billion, ten million, eleven thousand, one hundred one".