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1112020211 = 9091122321
BaseRepresentation
bin100001001001000…
…0001010011110011
32212111110110221202
41002102001103303
54234134121321
6302202241415
736362005301
oct10222012363
92774413852
101112020211
11520785275
122704b626b
131494cbc33
14a798b271
156795c70b
hex424814f3

1112020211 has 4 divisors (see below), whose sum is σ = 1112151624. Its totient is φ = 1111888800.

The previous prime is 1112020193. The next prime is 1112020213. The reversal of 1112020211 is 1120202111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1112020211 - 222 = 1107825907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1112020192 and 1112020201.

It is not an unprimeable number, because it can be changed into a prime (1112020213) 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, 52070 + ... + 70251.

It is an arithmetic number, because the mean of its divisors is an integer number (278037906).

Almost surely, 21112020211 is an apocalyptic number.

1112020211 is a deficient number, since it is larger than the sum of its proper divisors (131413).

1112020211 is an equidigital number, since it uses as much as digits as its factorization.

1112020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131412.

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

The square root of 1112020211 is about 33346.9670434959. The cubic root of 1112020211 is about 1036.0265701185.

Adding to 1112020211 its reverse (1120202111), we get a palindrome (2232222322).

The spelling of 1112020211 in words is "one billion, one hundred twelve million, twenty thousand, two hundred eleven".

Divisors: 1 9091 122321 1112020211