1012221223132 has 96 divisors (see below), whose sum is σ = 2138263142400. Its totient is φ = 410081048832.

The previous prime is 1012221223037. The next prime is 1012221223133. The reversal of 1012221223132 is 2313221222101.

1012221223132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012221223133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20589693 + ... + 20638795.

It is an arithmetic number, because the mean of its divisors is an integer number (22273574400).

Almost surely, 2^{1012221223132} 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 1012221223132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1069131571200).

1012221223132 is an abundant number, since it is smaller than the sum of its proper divisors (1126041919268).

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

1012221223132 is a wasteful number, since it uses less digits than its factorization.

1012221223132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49675 (or 49673 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1012221223132 its reverse (2313221222101), we get a palindrome (3325442445233).

The spelling of 1012221223132 in words is "one trillion, twelve billion, two hundred twenty-one million, two hundred twenty-three thousand, one hundred thirty-two".