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120020212101 = 3893821117643
BaseRepresentation
bin110111111000111000…
…0110001100110000101
3102110210102012111021210
41233301300301212011
53431300133241401
6131045253402033
711446132653546
oct1576160614605
9373712174253
10120020212101
114699a30a839
121b316639319
13b4194431aa
145b47cc84cd
1531c6b494d6
hex1bf1c31985

120020212101 has 16 divisors (see below), whose sum is σ = 161868732480. Its totient is φ = 79093069440.

The previous prime is 120020212079. The next prime is 120020212163. The reversal of 120020212101 is 101212020021.

It is not a de Polignac number, because 120020212101 - 29 = 120020211589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120020212171) 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, 961386 + ... + 1079028.

It is an arithmetic number, because the mean of its divisors is an integer number (10116795780).

Almost surely, 2120020212101 is an apocalyptic number.

It is an amenable number.

120020212101 is a deficient number, since it is larger than the sum of its proper divisors (41848520379).

120020212101 is a wasteful number, since it uses less digits than its factorization.

120020212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121556.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 120020212101 its reverse (101212020021), we get a palindrome (221232232122).

The spelling of 120020212101 in words is "one hundred twenty billion, twenty million, two hundred twelve thousand, one hundred one".

Divisors: 1 3 89 267 3821 11463 117643 340069 352929 1020207 10470227 31410681 449513903 1348541709 40006737367 120020212101