2100001201211 has 4 divisors (see below), whose sum is σ = 2100127670592. Its totient is φ = 2099874731832.

The previous prime is 2100001201141. The next prime is 2100001201267. The reversal of 2100001201211 is 1121021000012.

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

It is a cyclic number.

It is not a de Polignac number, because 2100001201211 - 2¹⁸ = 2100000939067 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2100001201192 and 2100001201201.

It is not an unprimeable number, because it can be changed into a prime (2100001201411) 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, 63209780 + ... + 63242993.

It is an arithmetic number, because the mean of its divisors is an integer number (525031917648).

Almost surely, 2^{2100001201211} is an apocalyptic number.

2100001201211 is a deficient number, since it is larger than the sum of its proper divisors (126469381).

2100001201211 is a wasteful number, since it uses less digits than its factorization.

2100001201211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126469380.

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

Adding to 2100001201211 its reverse (1121021000012), we get a palindrome (3221022201223).

The spelling of 2100001201211 in words is "two trillion, one hundred billion, one million, two hundred one thousand, two hundred eleven".