101202200020121 has 4 divisors (see below), whose sum is σ = 101202251812644. Its totient is φ = 101202148227600.

The previous prime is 101202200020111. The next prime is 101202200020151. The reversal of 101202200020121 is 121020002202101.

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 59793798696025 + 41408401324096 = 7732645^2 + 6434936^2 .

It is a cyclic number.

It is not a de Polignac number, because 101202200020121 - 2²² = 101202195825817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101202200020096 and 101202200020105.

It is not an unprimeable number, because it can be changed into a prime (101202200020111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22845470 + ... + 26913191.

It is an arithmetic number, because the mean of its divisors is an integer number (25300562953161).

Almost surely, 2^{101202200020121} is an apocalyptic number.

It is an amenable number.

101202200020121 is a deficient number, since it is larger than the sum of its proper divisors (51792523).

101202200020121 is an equidigital number, since it uses as much as digits as its factorization.

101202200020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51792522.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 101202200020121 its reverse (121020002202101), we get a palindrome (222222202222222).

The spelling of 101202200020121 in words is "one hundred one trillion, two hundred two billion, two hundred million, twenty thousand, one hundred twenty-one".