11212120010 has 32 divisors (see below), whose sum is σ = 24839160192.
Its totient is φ = 3548450880.
The previous prime is 11212119979. The next prime is 11212120033. The reversal of 11212120010 is 1002121211.
Adding to 11212120010 its reverse (1002121211), we get a palindrome (12214241221).
It is a junction number, because it is equal to n+sod(n) for n = 11212119973 and 11212120000.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6159596 + ... + 6161415.
It is an arithmetic number, because the mean of its divisors is an integer number (776223756).
Almost surely, 211212120010 is an apocalyptic number.
11212120010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
11212120010 is an abundant number, since it is smaller than the sum of its proper divisors (13627040182).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
11212120010 is a wasteful number, since it uses less digits than its factorization.
11212120010 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12321038.
The product of its (nonzero) digits is 8, while the sum is 11.
The spelling of 11212120010 in words is "eleven billion, two hundred twelve million, one hundred twenty thousand, ten".