211021110001201 has 8 divisors (see below), whose sum is σ = 211742926836840. Its totient is φ = 210299304106752.

The previous prime is 211021110001159. The next prime is 211021110001211. The reversal of 211021110001201 is 102100011120112.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 149099949001201 + 61921161000000 = 12210649^2 + 7869000^2 .

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 211021110001201 - 2⁹ = 211021110000689 is a prime.

It is a super-2 number, since 2×211021110001201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211021110001211) 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, 36884121 + ... + 42219433.

It is an arithmetic number, because the mean of its divisors is an integer number (26467865854605).

Almost surely, 2^{211021110001201} is an apocalyptic number.

It is an amenable number.

211021110001201 is a deficient number, since it is larger than the sum of its proper divisors (721816835639).

211021110001201 is a wasteful number, since it uses less digits than its factorization.

211021110001201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5470595.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 211021110001201 its reverse (102100011120112), we get a palindrome (313121121121313).

The spelling of 211021110001201 in words is "two hundred eleven trillion, twenty-one billion, one hundred ten million, one thousand, two hundred one".