101020111201 has 4 divisors (see below), whose sum is σ = 101031756804. Its totient is φ = 101008465600.

The previous prime is 101020111189. The next prime is 101020111207. The reversal of 101020111201 is 102111020101.

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 89018689600 + 12001421601 = 298360^2 + 109551^2 .

It is a cyclic number.

It is not a de Polignac number, because 101020111201 - 2¹¹ = 101020109153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101020111207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5809780 + ... + 5827141.

It is an arithmetic number, because the mean of its divisors is an integer number (25257939201).

Almost surely, 2^101020111201 is an apocalyptic number.

It is an amenable number.

101020111201 is a deficient number, since it is larger than the sum of its proper divisors (11645603).

101020111201 is an equidigital number, since it uses as much as digits as its factorization.

101020111201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11645602.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 101020111201 its reverse (102111020101), we get a palindrome (203131131302).

The spelling of 101020111201 in words is "one hundred one billion, twenty million, one hundred eleven thousand, two hundred one".