11121221111010 has 16 divisors (see below), whose sum is σ = 26690930666496. Its totient is φ = 2965658962928.

The previous prime is 11121221110981. The next prime is 11121221111051. The reversal of 11121221111010 is 1011112212111.

11121221111010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185353685154 + ... + 185353685213.

It is an arithmetic number, because the mean of its divisors is an integer number (1668183166656).

Almost surely, 2^{11121221111010} is an apocalyptic number.

11121221111010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11121221111010 is an abundant number, since it is smaller than the sum of its proper divisors (15569709555486).

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

11121221111010 is a wasteful number, since it uses less digits than its factorization.

11121221111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370707370377.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 11121221111010 its reverse (1011112212111), we get a palindrome (12132333323121).

The spelling of 11121221111010 in words is "eleven trillion, one hundred twenty-one billion, two hundred twenty-one million, one hundred eleven thousand, ten".