1210001201211 has 16 divisors (see below), whose sum is σ = 1764085298688. Its totient is φ = 731632581600.

The previous prime is 1210001201209. The next prime is 1210001201273. The reversal of 1210001201211 is 1121021000121.

It is not a de Polignac number, because 1210001201211 - 2¹ = 1210001201209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1210001201291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42522556 + ... + 42551001.

It is an arithmetic number, because the mean of its divisors is an integer number (110255331168).

Almost surely, 2^{1210001201211} is an apocalyptic number.

1210001201211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1210001201211 is a deficient number, since it is larger than the sum of its proper divisors (554084097477).

1210001201211 is a wasteful number, since it uses less digits than its factorization.

1210001201211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85074002.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1210001201211 its reverse (1121021000121), we get a palindrome (2331022201332).

The spelling of 1210001201211 in words is "one trillion, two hundred ten billion, one million, two hundred one thousand, two hundred eleven".