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120212001011 = 277433978343
BaseRepresentation
bin110111111110100110…
…0011001000011110011
3102111021210002101012202
41233331030121003303
53432143233013021
6131120304213415
711453652102104
oct1577514310363
9374253071182
10120212001011
1146a885a4673
121b36a90a26b
13b44a0b3c5b
145b655703ab
1531d88d0a0b
hex1bfd3190f3

120212001011 has 4 divisors (see below), whose sum is σ = 120645979632. Its totient is φ = 119778022392.

The previous prime is 120212000959. The next prime is 120212001059. The reversal of 120212001011 is 110100212021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110100212021 = 432560470047.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-120212001011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120212000983 and 120212001001.

It is not an unprimeable number, because it can be changed into a prime (120212001211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216988895 + ... + 216989448.

It is an arithmetic number, because the mean of its divisors is an integer number (30161494908).

Almost surely, 2120212001011 is an apocalyptic number.

120212001011 is a deficient number, since it is larger than the sum of its proper divisors (433978621).

120212001011 is an equidigital number, since it uses as much as digits as its factorization.

120212001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433978620.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 120212001011 its reverse (110100212021), we get a palindrome (230312213032).

The spelling of 120212001011 in words is "one hundred twenty billion, two hundred twelve million, one thousand, eleven".

Divisors: 1 277 433978343 120212001011