111211012011010 has 8 divisors (see below), whose sum is σ = 200179821619836. Its totient is φ = 44484404804400.

The previous prime is 111211012010999. The next prime is 111211012011013. The reversal of 111211012011010 is 10110210112111.

It can be written as a sum of positive squares in 2 ways, for example, as 95421189214129 + 15789822796881 = 9768377^2 + 3973641^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×111211012011010² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111211012011013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5560550600541 + ... + 5560550600560.

Almost surely, 2^{111211012011010} is an apocalyptic number.

111211012011010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111211012011010 is a deficient number, since it is larger than the sum of its proper divisors (88968809608826).

111211012011010 is a wasteful number, since it uses less digits than its factorization.

111211012011010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11121101201108.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 111211012011010 its reverse (10110210112111), we get a palindrome (121321222123121).

The spelling of 111211012011010 in words is "one hundred eleven trillion, two hundred eleven billion, twelve million, eleven thousand, ten".