121101202005 has 32 divisors (see below), whose sum is σ = 222928416000. Its totient is φ = 54988995072.

The previous prime is 121101202003. The next prime is 121101202021. The reversal of 121101202005 is 500202101121.

It is not a de Polignac number, because 121101202005 - 2¹ = 121101202003 is a prime.

It is a super-2 number, since 2×121101202005² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121101202003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3854640 + ... + 3885929.

It is an arithmetic number, because the mean of its divisors is an integer number (6966513000).

Almost surely, 2^121101202005 is an apocalyptic number.

121101202005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121101202005 is a deficient number, since it is larger than the sum of its proper divisors (101827213995).

121101202005 is a wasteful number, since it uses less digits than its factorization.

121101202005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7740733.

The product of its (nonzero) digits is 40, while the sum is 15.

Adding to 121101202005 its reverse (500202101121), we get a palindrome (621303303126).

The spelling of 121101202005 in words is "one hundred twenty-one billion, one hundred one million, two hundred two thousand, five".