1112211021012 has 192 divisors, whose sum is σ = 3259401223680. Its totient is φ = 287345350656.

The previous prime is 1112211020969. The next prime is 1112211021029. The reversal of 1112211021012 is 2101201122111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1112211020982 and 1112211021000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 37778314 + ... + 37807742.

It is an arithmetic number, because the mean of its divisors is an integer number (16976048040).

Almost surely, 2^{1112211021012} is an apocalyptic number.

1112211021012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1112211021012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1629700611840).

1112211021012 is an abundant number, since it is smaller than the sum of its proper divisors (2147190202668).

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

1112211021012 is a wasteful number, since it uses less digits than its factorization.

1112211021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30162 (or 30160 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1112211021012 its reverse (2101201122111), we get a palindrome (3213412143123).

The spelling of 1112211021012 in words is "one trillion, one hundred twelve billion, two hundred eleven million, twenty-one thousand, twelve".