202101117 has 16 divisors (see below), whose sum is σ = 285949440. Its totient is φ = 126528512.

The previous prime is 202101091. The next prime is 202101127. The reversal of 202101117 is 711101202.

It is a cyclic number.

It is not a de Polignac number, because 202101117 - 2¹⁹ = 201576829 is a prime.

It is a super-2 number, since 2×202101117² = 81689722985295378, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202101096 and 202101105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202101127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20293 + ... + 28565.

It is an arithmetic number, because the mean of its divisors is an integer number (17871840).

Almost surely, 2^202101117 is an apocalyptic number.

It is an amenable number.

202101117 is a deficient number, since it is larger than the sum of its proper divisors (83848323).

202101117 is a wasteful number, since it uses less digits than its factorization.

202101117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8772.

The product of its (nonzero) digits is 28, while the sum is 15.

The square root of 202101117 is about 14216.2272421343. The cubic root of 202101117 is about 586.8443188670.

Adding to 202101117 its reverse (711101202), we get a palindrome (913202319).

The spelling of 202101117 in words is "two hundred two million, one hundred one thousand, one hundred seventeen".