1012121122012 has 144 divisors (see below), whose sum is σ = 2473445287936. Its totient is φ = 352257206400.

The previous prime is 1012121121997. The next prime is 1012121122021. The reversal of 1012121122012 is 2102211212101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 994723 + ... + 1736005.

Almost surely, 2^{1012121122012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1012121122012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1236722643968).

1012121122012 is an abundant number, since it is smaller than the sum of its proper divisors (1461324165924).

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

1012121122012 is a wasteful number, since it uses less digits than its factorization.

1012121122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741360 (or 741347 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1012121122012 its reverse (2102211212101), we get a palindrome (3114332334113).

The spelling of 1012121122012 in words is "one trillion, twelve billion, one hundred twenty-one million, one hundred twenty-two thousand, twelve".