101202120120121 has 4 divisors (see below), whose sum is σ = 101202190654500. Its totient is φ = 101202049585744.

The previous prime is 101202120120113. The next prime is 101202120120163. The reversal of 101202120120121 is 121021021202101.

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 36738884910121 + 64463235210000 = 6061261^2 + 8028900^2 .

It is a cyclic number.

It is not a de Polignac number, because 101202120120121 - 2³ = 101202120120113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101202120120095 and 101202120120104.

It is not an unprimeable number, because it can be changed into a prime (101202120120181) 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, 33069346 + ... + 35999803.

It is an arithmetic number, because the mean of its divisors is an integer number (25300547663625).

Almost surely, 2^{101202120120121} is an apocalyptic number.

It is an amenable number.

101202120120121 is a deficient number, since it is larger than the sum of its proper divisors (70534379).

101202120120121 is an equidigital number, since it uses as much as digits as its factorization.

101202120120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70534378.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 101202120120121 its reverse (121021021202101), we get a palindrome (222223141322222).

The spelling of 101202120120121 in words is "one hundred one trillion, two hundred two billion, one hundred twenty million, one hundred twenty thousand, one hundred twenty-one".