1012220221002 has 16 divisors (see below), whose sum is σ = 2033129030400. Its totient is φ = 335958642272.

The previous prime is 1012220220971. The next prime is 1012220221007. The reversal of 1012220221002 is 2001220222101.

It is not an unprimeable number, because it can be changed into a prime (1012220221007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362023002 + ... + 362025797.

It is an arithmetic number, because the mean of its divisors is an integer number (127070564400).

Almost surely, 2^{1012220221002} is an apocalyptic number.

1012220221002 is an abundant number, since it is smaller than the sum of its proper divisors (1020908809398).

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

1012220221002 is a wasteful number, since it uses less digits than its factorization.

1012220221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724049037.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1012220221002 its reverse (2001220222101), we get a palindrome (3013440443103).

The spelling of 1012220221002 in words is "one trillion, twelve billion, two hundred twenty million, two hundred twenty-one thousand, two".