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120201212111 = 2310151743957
BaseRepresentation
bin110111111110010001…
…1001111000011001111
3102111021000210020121212
41233330203033003033
53432133002241421
6131115241045035
711453461305431
oct1577443170317
9374230706555
10120201212111
1146a824a5822
121b36718677b
13b447aa72a6
145b63d62651
1531d799de5b
hex1bfc8cf0cf

120201212111 has 8 divisors (see below), whose sum is σ = 126669209184. Its totient is φ = 113836703200.

The previous prime is 120201212083. The next prime is 120201212119. The reversal of 120201212111 is 111212102021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-120201212111 is a prime.

It is a super-2 number, since 2×1202012121112 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120201212119) 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, 25869656 + ... + 25874301.

It is an arithmetic number, because the mean of its divisors is an integer number (15833651148).

Almost surely, 2120201212111 is an apocalyptic number.

120201212111 is a deficient number, since it is larger than the sum of its proper divisors (6467997073).

120201212111 is a wasteful number, since it uses less digits than its factorization.

120201212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51744081.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 120201212111 its reverse (111212102021), we get a palindrome (231413314132).

The spelling of 120201212111 in words is "one hundred twenty billion, two hundred one million, two hundred twelve thousand, one hundred eleven".

Divisors: 1 23 101 2323 51743957 1190111011 5226139657 120201212111