Search a number
-
+
101200202212021 = 1123979140853927
BaseRepresentation
bin10111000000101010000010…
…000110101010001010110101
3111021022122102002112002000021
4113000222002012222022311
5101231031003231241041
6555122421525245141
730213321231464563
oct2700520206521265
9437278362462007
10101200202212021
112a277845957140
12b42533ab637b1
1344611a45b0a23
141adc18a136a33
15ba76b20eecd1
hex5c0a821aa2b5

101200202212021 has 16 divisors (see below), whose sum is σ = 115211998937088. Its totient is φ = 87991185818800.

The previous prime is 101200202212003. The next prime is 101200202212027. The reversal of 101200202212021 is 120212202002101.

It is a happy number.

It is not a de Polignac number, because 101200202212021 - 223 = 101200193823413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101200202211986 and 101200202212004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101200202212027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17949841 + ... + 22904086.

It is an arithmetic number, because the mean of its divisors is an integer number (7200749933568).

Almost surely, 2101200202212021 is an apocalyptic number.

101200202212021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101200202212021 is a deficient number, since it is larger than the sum of its proper divisors (14011796725067).

101200202212021 is a wasteful number, since it uses less digits than its factorization.

101200202212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40863752.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 101200202212021 its reverse (120212202002101), we get a palindrome (221412404214122).

The spelling of 101200202212021 in words is "one hundred one trillion, two hundred billion, two hundred two million, two hundred twelve thousand, twenty-one".

Divisors: 1 11 23 253 9791 107701 225193 2477123 40853927 449393197 939640321 10336043531 400000799257 4400008791827 9200018382911 101200202212021