11121221212010 has 64 divisors (see below), whose sum is σ = 24643057420800. Its totient is φ = 3518929619712.

The previous prime is 11121221212001. The next prime is 11121221212061. The reversal of 11121221212010 is 1021212212111.

11121221212010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11121221212010² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11121221212010.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2951936 + ... + 5563844.

It is an arithmetic number, because the mean of its divisors is an integer number (385047772200).

Almost surely, 2^{11121221212010} is an apocalyptic number.

11121221212010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11121221212010 is an abundant number, since it is smaller than the sum of its proper divisors (13521836208790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11121221212010 is a wasteful number, since it uses less digits than its factorization.

11121221212010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2616615.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11121221212010 its reverse (1021212212111), we get a palindrome (12142433424121).

The spelling of 11121221212010 in words is "eleven trillion, one hundred twenty-one billion, two hundred twenty-one million, two hundred twelve thousand, ten".