111210212011010 has 48 divisors (see below), whose sum is σ = 233365687382520. Its totient is φ = 38046505674240.

The previous prime is 111210212010923. The next prime is 111210212011021. The reversal of 111210212011010 is 10110212012111.

It can be written as a sum of positive squares in 4 ways, for example, as 102972628936849 + 8237583074161 = 10147543^2 + 2870119^2 .

It is a super-3 number, since 3×111210212011010³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (14).

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 23 ways as a sum of consecutive naturals, for example, 245934215 + ... + 246385994.

Almost surely, 2^{111210212011010} is an apocalyptic number.

111210212011010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111210212011010 is an abundant number, since it is smaller than the sum of its proper divisors (122155475371510).

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

111210212011010 is a wasteful number, since it uses less digits than its factorization.

111210212011010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492320691 (or 492320684 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111210212011010 its reverse (10110212012111), we get a palindrome (121320424023121).

The spelling of 111210212011010 in words is "one hundred eleven trillion, two hundred ten billion, two hundred twelve million, eleven thousand, ten".