21110311202201 has 8 divisors (see below), whose sum is σ = 23722623960000. Its totient is φ = 18639204539472.

The previous prime is 21110311202159. The next prime is 21110311202203. The reversal of 21110311202201 is 10220211301112.

It is a happy number.

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 21110311202201 - 2⁴² = 16712264691097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21110311202201.

It is not an unprimeable number, because it can be changed into a prime (21110311202203) 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, 35301523451 + ... + 35301524048.

It is an arithmetic number, because the mean of its divisors is an integer number (2965327995000).

Almost surely, 2^{21110311202201} is an apocalyptic number.

It is an amenable number.

21110311202201 is a deficient number, since it is larger than the sum of its proper divisors (2612312757799).

21110311202201 is a wasteful number, since it uses less digits than its factorization.

21110311202201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70603047535.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 21110311202201 its reverse (10220211301112), we get a palindrome (31330522503313).

The spelling of 21110311202201 in words is "twenty-one trillion, one hundred ten billion, three hundred eleven million, two hundred two thousand, two hundred one".