121202010202001 has 4 divisors (see below), whose sum is σ = 121323576913332. Its totient is φ = 121080443490672.

The previous prime is 121202010201991. The next prime is 121202010202027. The reversal of 121202010202001 is 100202010202121.

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 74355870310225 + 46846139891776 = 8622985^2 + 6844424^2 .

It is a cyclic number.

It is not a de Polignac number, because 121202010202001 - 2²⁶ = 121201943093137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121202010402001) 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, 60783354170 + ... + 60783356163.

It is an arithmetic number, because the mean of its divisors is an integer number (30330894228333).

Almost surely, 2^{121202010202001} is an apocalyptic number.

It is an amenable number.

121202010202001 is a deficient number, since it is larger than the sum of its proper divisors (121566711331).

121202010202001 is an equidigital number, since it uses as much as digits as its factorization.

121202010202001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121566711330.

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

Adding to 121202010202001 its reverse (100202010202121), we get a palindrome (221404020404122).

The spelling of 121202010202001 in words is "one hundred twenty-one trillion, two hundred two billion, ten million, two hundred two thousand, one".