1020201022101 has 4 divisors (see below), whose sum is σ = 1360268029472. Its totient is φ = 680134014732.

The previous prime is 1020201022097. The next prime is 1020201022111. The reversal of 1020201022101 is 1012201020201.

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 not a de Polignac number, because 1020201022101 - 2² = 1020201022097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020201022111) 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, 170033503681 + ... + 170033503686.

It is an arithmetic number, because the mean of its divisors is an integer number (340067007368).

Almost surely, 2^{1020201022101} is an apocalyptic number.

It is an amenable number.

1020201022101 is a deficient number, since it is larger than the sum of its proper divisors (340067007371).

1020201022101 is an equidigital number, since it uses as much as digits as its factorization.

1020201022101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340067007370.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1020201022101 its reverse (1012201020201), we get a palindrome (2032402042302).

The spelling of 1020201022101 in words is "one trillion, twenty billion, two hundred one million, twenty-two thousand, one hundred one".