202061510121 has 8 divisors (see below), whose sum is σ = 270265238784. Its totient is φ = 134282727440.

The previous prime is 202061510107. The next prime is 202061510129. The reversal of 202061510121 is 121015160202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202061510121 - 2¹¹ = 202061508073 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (202061510129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106235385 + ... + 106237286.

It is an arithmetic number, because the mean of its divisors is an integer number (33783154848).

Almost surely, 2^202061510121 is an apocalyptic number.

It is an amenable number.

202061510121 is a deficient number, since it is larger than the sum of its proper divisors (68203728663).

202061510121 is a wasteful number, since it uses less digits than its factorization.

202061510121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212472991.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 202061510121 its reverse (121015160202), we get a palindrome (323076670323).

The spelling of 202061510121 in words is "two hundred two billion, sixty-one million, five hundred ten thousand, one hundred twenty-one".