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120102121211 = 2318128849897
BaseRepresentation
bin110111111011010100…
…1001110111011111011
3102111000010022220110112
41233312221032323323
53431432120334321
6131101341134535
711451146120612
oct1576651167373
9374003286415
10120102121211
1146a31575316
121b339b5a44b
13b4303c1517
145b54b2a879
1531cde28a5b
hex1bf6a4eefb

120102121211 has 8 divisors (see below), whose sum is σ = 126016354464. Its totient is φ = 114245588160.

The previous prime is 120102121177. The next prime is 120102121231. The reversal of 120102121211 is 112121201021.

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-120102121211 is a prime.

It is a super-2 number, since 2×1201021212112 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120102121231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14420786 + ... + 14429111.

It is an arithmetic number, because the mean of its divisors is an integer number (15752044308).

Almost surely, 2120102121211 is an apocalyptic number.

120102121211 is a deficient number, since it is larger than the sum of its proper divisors (5914233253).

120102121211 is a wasteful number, since it uses less digits than its factorization.

120102121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28850101.

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

Adding to 120102121211 its reverse (112121201021), we get a palindrome (232223322232).

The spelling of 120102121211 in words is "one hundred twenty billion, one hundred two million, one hundred twenty-one thousand, two hundred eleven".

Divisors: 1 23 181 4163 28849897 663547631 5221831357 120102121211