11211211010 has 16 divisors (see below), whose sum is σ = 20245073472. Its totient is φ = 4470063600.

The previous prime is 11211211001. The next prime is 11211211013. The reversal of 11211211010 is 1011211211.

It is a junction number, because it is equal to n+sod(n) for n = 11211210982 and 11211211000.

It is not an unprimeable number, because it can be changed into a prime (11211211013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1799336 + ... + 1805555.

It is an arithmetic number, because the mean of its divisors is an integer number (1265317092).

Almost surely, 2^11211211010 is an apocalyptic number.

11211211010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11211211010 is a deficient number, since it is larger than the sum of its proper divisors (9033862462).

11211211010 is a wasteful number, since it uses less digits than its factorization.

11211211010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3605209.

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

Adding to 11211211010 its reverse (1011211211), we get a palindrome (12222422221).

The spelling of 11211211010 in words is "eleven billion, two hundred eleven million, two hundred eleven thousand, ten".