1012221230202 has 384 divisors, whose sum is σ = 2941414414848. Its totient is φ = 243954892800.

The previous prime is 1012221230201. The next prime is 1012221230213. The reversal of 1012221230202 is 2020321222101.

1012221230202 is a `hidden beast` number, since 1 + 0 + 12 + 221 + 230 + 202 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1012221230201) 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 191 ways as a sum of consecutive naturals, for example, 784059177 + ... + 784060467.

It is an arithmetic number, because the mean of its divisors is an integer number (7659933372).

Almost surely, 2^{1012221230202} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1012221230202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1470707207424).

1012221230202 is an abundant number, since it is smaller than the sum of its proper divisors (1929193184646).

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

1012221230202 is a wasteful number, since it uses less digits than its factorization.

1012221230202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134 (or 2131 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 1012221230202 its reverse (2020321222101), we get a palindrome (3032542452303).

The spelling of 1012221230202 in words is "one trillion, twelve billion, two hundred twenty-one million, two hundred thirty thousand, two hundred two".