211201000001 has 8 divisors (see below), whose sum is σ = 212111804520. Its totient is φ = 210291126912.

The previous prime is 211200999991. The next prime is 211201000007. The reversal of 211201000001 is 100000102112.

It can be written as a sum of positive squares in 4 ways, for example, as 2479940401 + 208721059600 = 49799^2 + 456860^2 .

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 211201000001 - 2⁶ = 211200999937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211201000007) 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, 223541 + ... + 687293.

It is an arithmetic number, because the mean of its divisors is an integer number (26513975565).

Almost surely, 2^211201000001 is an apocalyptic number.

It is an amenable number.

211201000001 is a deficient number, since it is larger than the sum of its proper divisors (910804519).

211201000001 is a wasteful number, since it uses less digits than its factorization.

211201000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465715.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 211201000001 its reverse (100000102112), we get a palindrome (311201102113).

The spelling of 211201000001 in words is "two hundred eleven billion, two hundred one million, one", and thus it is an aban number.