10211001221211 has 8 divisors (see below), whose sum is σ = 15559620908544. Its totient is φ = 5834857840680.

The previous prime is 10211001221209. The next prime is 10211001221249. The reversal of 10211001221211 is 11212210011201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10211001221211 - 2¹ = 10211001221209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10211001221411) 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, 243119076675 + ... + 243119076716.

It is an arithmetic number, because the mean of its divisors is an integer number (1944952613568).

Almost surely, 2^{10211001221211} is an apocalyptic number.

10211001221211 is a deficient number, since it is larger than the sum of its proper divisors (5348619687333).

10211001221211 is an equidigital number, since it uses as much as digits as its factorization.

10211001221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486238153401.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 10211001221211 its reverse (11212210011201), we get a palindrome (21423211232412).

The spelling of 10211001221211 in words is "ten trillion, two hundred eleven billion, one million, two hundred twenty-one thousand, two hundred eleven".