211000021001201 has 4 divisors (see below), whose sum is σ = 211071473771172. Its totient is φ = 210928568231232.

The previous prime is 211000021001171. The next prime is 211000021001291. The reversal of 211000021001201 is 102100120000112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 198523591225600 + 12476429775601 = 14089840^2 + 3532199^2 .

It is a cyclic number.

It is not a de Polignac number, because 211000021001201 - 2¹⁰ = 211000021000177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (211000021001291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35726380556 + ... + 35726386461.

It is an arithmetic number, because the mean of its divisors is an integer number (52767868442793).

Almost surely, 2^{211000021001201} is an apocalyptic number.

It is an amenable number.

211000021001201 is a deficient number, since it is larger than the sum of its proper divisors (71452769971).

211000021001201 is an equidigital number, since it uses as much as digits as its factorization.

211000021001201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71452769970.

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

Adding to 211000021001201 its reverse (102100120000112), we get a palindrome (313100141001313).

The spelling of 211000021001201 in words is "two hundred eleven trillion, twenty-one million, one thousand, two hundred one".