1010001220197 has 4 divisors (see below), whose sum is σ = 1346668293600. Its totient is φ = 673334146796.

The previous prime is 1010001220139. The next prime is 1010001220199. The reversal of 1010001220197 is 7910221000101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1010001220197 - 2¹⁸ = 1010000958053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010001220199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168333536697 + ... + 168333536702.

It is an arithmetic number, because the mean of its divisors is an integer number (336667073400).

Almost surely, 2^{1010001220197} is an apocalyptic number.

It is an amenable number.

1010001220197 is a deficient number, since it is larger than the sum of its proper divisors (336667073403).

1010001220197 is an equidigital number, since it uses as much as digits as its factorization.

1010001220197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336667073402.

The product of its (nonzero) digits is 252, while the sum is 24.

Adding to 1010001220197 its reverse (7910221000101), we get a palindrome (8920222220298).

The spelling of 1010001220197 in words is "one trillion, ten billion, one million, two hundred twenty thousand, one hundred ninety-seven".