10211212111211 has 8 divisors (see below), whose sum is σ = 10340653985280. Its totient is φ = 10081774887912.

The previous prime is 10211212111169. The next prime is 10211212111223. The reversal of 10211212111211 is 11211121211201.

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 10211212111211 - 2⁶ = 10211212111147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10211212111211.

It is not an unprimeable number, because it can be changed into a prime (10211212111231) 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, 3367496 + ... + 5635818.

It is an arithmetic number, because the mean of its divisors is an integer number (1292581748160).

Almost surely, 2^{10211212111211} is an apocalyptic number.

10211212111211 is a deficient number, since it is larger than the sum of its proper divisors (129441874069).

10211212111211 is an equidigital number, since it uses as much as digits as its factorization.

10211212111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2325385.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 10211212111211 its reverse (11211121211201), we get a palindrome (21422333322412).

The spelling of 10211212111211 in words is "ten trillion, two hundred eleven billion, two hundred twelve million, one hundred eleven thousand, two hundred eleven".