111012213101010 has 256 divisors, whose sum is σ = 291316471488000. Its totient is φ = 26910399504384.

The previous prime is 111012213100973. The next prime is 111012213101017. The reversal of 111012213101010 is 10101312210111.

It is a super-2 number, since 2×111012213101010² (a number of 29 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (111012213101017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 11471754292 + ... + 11471763968.

It is an arithmetic number, because the mean of its divisors is an integer number (1137954966750).

Almost surely, 2^{111012213101010} is an apocalyptic number.

111012213101010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 111012213101010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145658235744000).

111012213101010 is an abundant number, since it is smaller than the sum of its proper divisors (180304258386990).

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

111012213101010 is a wasteful number, since it uses less digits than its factorization.

111012213101010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11085.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 111012213101010 its reverse (10101312210111), we get a palindrome (121113525311121).

The spelling of 111012213101010 in words is "one hundred eleven trillion, twelve billion, two hundred thirteen million, one hundred one thousand, ten".