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120202211011 = 213156406481
BaseRepresentation
bin110111111110010011…
…1000010111011000011
3102111021002122222212011
41233330213002323003
53432133231223021
6131115314313351
711453502635611
oct1577447027303
9374232588764
10120202211011
1146a83018263
121b367588857
13b448066b5c
145b641426b1
1531d7ae9de1
hex1bfc9c2ec3

120202211011 has 4 divisors (see below), whose sum is σ = 120258619624. Its totient is φ = 120145802400.

The previous prime is 120202211009. The next prime is 120202211029. The reversal of 120202211011 is 110112202021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110112202021 = 137239802339.

It is a cyclic number.

It is not a de Polignac number, because 120202211011 - 21 = 120202211009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120202210982 and 120202211000.

It is not an unprimeable number, because it can be changed into a prime (120202211711) 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, 28201110 + ... + 28205371.

It is an arithmetic number, because the mean of its divisors is an integer number (30064654906).

Almost surely, 2120202211011 is an apocalyptic number.

120202211011 is a deficient number, since it is larger than the sum of its proper divisors (56408613).

120202211011 is an equidigital number, since it uses as much as digits as its factorization.

120202211011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56408612.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 120202211011 its reverse (110112202021), we get a palindrome (230314413032).

The spelling of 120202211011 in words is "one hundred twenty billion, two hundred two million, two hundred eleven thousand, eleven".

Divisors: 1 2131 56406481 120202211011