11112121111010 has 64 divisors (see below), whose sum is σ = 20738529792000. Its totient is φ = 4282414348800.

The previous prime is 11112121110989. The next prime is 11112121111057. The reversal of 11112121111010 is 1011112121111.

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, 344428280 + ... + 344460540.

It is an arithmetic number, because the mean of its divisors is an integer number (324039528000).

Almost surely, 2^{11112121111010} is an apocalyptic number.

11112121111010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11112121111010 is a deficient number, since it is larger than the sum of its proper divisors (9626408680990).

11112121111010 is a wasteful number, since it uses less digits than its factorization.

11112121111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37187.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 11112121111010 its reverse (1011112121111), we get a palindrome (12123233232121).

It can be divided in two parts, 1111212 and 1111010, that added together give a palindrome (2222222).

The spelling of 11112121111010 in words is "eleven trillion, one hundred twelve billion, one hundred twenty-one million, one hundred eleven thousand, ten".