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121021012201101 = 3172372961023551
BaseRepresentation
bin11011100001000101100110…
…011100010100111010001101
3120212111111101102100212112220
4123201011212130110322031
5111330302013110413401
61105220141355445553
734330323333535545
oct3341054634247215
9525444342325486
10121021012201101
11356197a5415861
12116a68241568b9
13526b3039bc9ac
1421c563bda4325
15ded07a929336
hex6e1166714e8d

121021012201101 has 8 divisors (see below), whose sum is σ = 170853193695744. Its totient is φ = 75934752753600.

The previous prime is 121021012201091. The next prime is 121021012201123. The reversal of 121021012201101 is 101102210120121.

It is a happy number.

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

It is not a de Polignac number, because 121021012201101 - 211 = 121021012199053 is a prime.

It is a super-2 number, since 2×1210210122011012 (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121021012201181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1186480511725 + ... + 1186480511826.

It is an arithmetic number, because the mean of its divisors is an integer number (21356649211968).

Almost surely, 2121021012201101 is an apocalyptic number.

It is an amenable number.

121021012201101 is a deficient number, since it is larger than the sum of its proper divisors (49832181494643).

121021012201101 is a wasteful number, since it uses less digits than its factorization.

121021012201101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2372961023571.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 121021012201101 its reverse (101102210120121), we get a palindrome (222123222321222).

The spelling of 121021012201101 in words is "one hundred twenty-one trillion, twenty-one billion, twelve million, two hundred one thousand, one hundred one".

Divisors: 1 3 17 51 2372961023551 7118883070653 40340337400367 121021012201101