102020022020101 has 4 divisors (see below), whose sum is σ = 102046336190092. Its totient is φ = 101993707850112.

The previous prime is 102020022020093. The next prime is 102020022020159. The reversal of 102020022020101 is 101020220020201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7439534457601 + 94580487562500 = 2727551^2 + 9725250^2 .

It is a cyclic number.

It is not a de Polignac number, because 102020022020101 - 2³ = 102020022020093 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 (102020022027101) 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, 13157079180 + ... + 13157086933.

It is an arithmetic number, because the mean of its divisors is an integer number (25511584047523).

Almost surely, 2^{102020022020101} is an apocalyptic number.

It is an amenable number.

102020022020101 is a deficient number, since it is larger than the sum of its proper divisors (26314169991).

102020022020101 is an equidigital number, since it uses as much as digits as its factorization.

102020022020101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26314169990.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 102020022020101 its reverse (101020220020201), we get a palindrome (203040242040302).

The spelling of 102020022020101 in words is "one hundred two trillion, twenty billion, twenty-two million, twenty thousand, one hundred one".