10011211211 has 4 divisors (see below), whose sum is σ = 10114419672. Its totient is φ = 9908002752.

The previous prime is 10011211193. The next prime is 10011211241. The reversal of 10011211211 is 11211211001.

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 10011211211 - 2¹⁴ = 10011194827 is a prime.

It is a super-2 number, since 2×10011211211² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10011211192 and 10011211201.

It is not an unprimeable number, because it can be changed into a prime (10011211241) 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, 51604085 + ... + 51604278.

It is an arithmetic number, because the mean of its divisors is an integer number (2528604918).

Almost surely, 2^10011211211 is an apocalyptic number.

10011211211 is a deficient number, since it is larger than the sum of its proper divisors (103208461).

10011211211 is an equidigital number, since it uses as much as digits as its factorization.

10011211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103208460.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 10011211211 its reverse (11211211001), we get a palindrome (21222422212).

The spelling of 10011211211 in words is "ten billion, eleven million, two hundred eleven thousand, two hundred eleven".